smart rural grid · 2017. 5. 12. · smart_rural_grid fp7 project – grant agreement nº. 619610...
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Smart_Rural_Grid FP7 project – Grant agreement nº. 619610
This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no. 619610
Smart_Rural_Grid
"Smart ICT-enabled Rural Grid innovating resilient electricity distribution infrastructures, services and business models"
Deliverable nº: D4.6
Deliverable name: Final Wireless Transmission System
Version: 1.0
Release date: 13/04/2017
Dissemination level: PU (PU, PP, RE, CO, Internal)
Status: Final
Author: XOC
Contributors EYPESA, ZIV Communications
Executive summary
This deliverable includes the final design of the Wireless Transmission System, together with all the tests and certifications carried out since its installation as a prototype (in D4.3).
As of the deployment of the prototype, the system has been improved with the developments carried out within the project. Thus, this deliverable includes the changes that have been implemented, together with a report on the performance and quality of service provided by the overall communications system.
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Document history
Version Date of issue Content and changes Edited by
1.0 April 13th, 2017 First version
Carlos Bock Jordi Tortosa
Peer reviewed by:
Partner Contributor
EYPESA Ramon Gallart
UPC Andreas Sumper /Daniel Heredero
Deliverable beneficiaries
WP / Task Responsible
All Work Package Leaders
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Table of contents
EXECUTIVE SUMMARY ................................................................................................... 6
1. INTRODUCTION ...................................................................................................... 7
2. DESCRIPTION OF THE FINAL WIRELESS TRANSMISSION SYSTEM ................. 8
Wi-Fi access network .................................................................................................... 9
Radio Backbone .......................................................................................................... 11
Fibre Network backbone ............................................................................................. 13
Optical interconnection ........................................................................................... 13
Complete network ....................................................................................................... 15
3. PERFORMANCE AND RESULTS .......................................................................... 17
Network Throughput .................................................................................................... 17
Access Network in Planallonga ............................................................................... 17
Radio backbone ...................................................................................................... 17
P2P Milany - Bellmunt............................................................................................. 17
P2P Milany-Verger .................................................................................................. 17
Fibre Network backbone ......................................................................................... 18
Radio interconnection between Collsuspina and Bellmunt ...................................... 18
Network availability ..................................................................................................... 19
Access network ....................................................................................................... 19
Radio backbone ...................................................................................................... 21
Fibre backbone ....................................................................................................... 24
4. CONCLUSIONS ..................................................................................................... 26
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Abbreviations and Acronyms
Acronym Description
ADC Analogue to Digital Converter
ADSL Asymmetric Digital Subscriber Line
AES Advanced Encryption Standard
BER Bit Error Rate
BPSK Binary Phase Shift Keying
B8ZS Bipolar 8-Zero Substitution
CO Dissemination Confidential, limited to project participants
CSMA/CA Carrier Sense Multiple Access with Collision Avoidance
DECT Digital European Cordless Telephone
DMVPN Dynamic Multipoint Virtual Private Network
DSO Distribution System Operator
EC European Commission
ED Energy Detection
EDGE Enhanced Data rates for GSM Evolution
EGSM Extended Global System for Mobile Communications
EVPL Ethernet Virtual Private LAN
FDD Frequency Division Duplexing
FEC Forward Error Correction
GSM Global System for Mobile Communications
GPRS General Packet Radio Service
HSDPA High Speed Downlink Packet Access
HTTP HyperText Transfer Protocol
HDB3 High Density Bipolar 3 zeros
IDPR Intelligent Distribution Power Router
IEEE Institute of Electrical and Electronics Engineers
IP Internet Protocol
IPSec Internet protocol with Security extensions
ISDN Integrated Services Digital Network
ISP Inter System Protocol
JDS Jerarquía Digital Síncrona (Synchronous Digital Hierarchy)
LAN Local Area Network
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Acronym Description
LRWBS Low Rate Wide Band Services
LV Low Voltage
MAC Medium Access Control
MTU Maximum Transfer Unit
MV Medium Voltage
NHRP Next Hop Resolution Protocol
OSPF Open Shortest Path First
PLC Power Line Carrier
PLT Power Line Telecommunications
PSK Phase Shift Keying
QoS Quality of Service
QPSK Quadrature Phase-Shift Keying
RIP Routing Information Protocol
RS Reed-Solomon
RTD Round Trip Delay
RTU Remote Terminal Unit
S/I Signal to Interference Ratio
S/N Signal to Noise Ratio
SNMP Simple Network Management Protocol
SS Spread Spectrum
SSH Secure Shell protocol
TCP Transmission Control Protocol
ToC Table of Contents
UDP User Datagram Protocol
UMTS Universal Mobile Telecommunications System
VLAN Virtual Local Area Network
VRRP Virtual Router Redundancy Protocol
WCDMA Wide Band Code Division Multiple Access
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EXECUTIVE SUMMARY
This deliverable describes the final wireless transmission system that has been deployed to give connectivity to the Valfogona area, in Girona, which was selected within the Smart Rural Grid project to carry out the prototype of the Smart Rural Grid System. The document describes the final overall network architecture, both at physical, layer and network levels and the performance results that have been obtained during the verification process.
The validator in Vallfogona was deployed to test the Smart Rural Grid wireless backup services. Network certifications after the trial show that the system fulfils the project design criteria and offers backup service to the PLC communications channel and a transport stream for data connectivity to the network operation centre.
Performance measurements, such as bandwidth and availability, confirm that the system fulfils all the requirements that were defined in D4.1.
The main conclusions are:
The wireless communications network offers a reliable backup to communicate with the end subscribers
Performance and latency fulfil the design parameters and allow to support high speed transmission services
No configuration adjustments were required from the initial design described in D4.3
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1. INTRODUCTION
This deliverable summarises the performance of the final wireless network deployed in the Vallfogona area, together with the backbone that interconnects this network with EYPESA interconnection point. This network, as originally described in D4.3, is composed of radio and fibre optic links.
Minor changes were required from the initial design in D4.3.
The results in terms of performance, latency and availability are successful and confirm that the network can be used to connect the end subscribers with EYPESA interconnection point at high data rates.
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2. DESCRIPTION OF THE FINAL WIRELESS TRANSMISSION SYSTEM
Figure 2, taken from D4.1, shows the complete network originally intended for the pilot area in Vallfogona and between Vallfogona and EYPESA interconnection point in Granollers.
Vallfogona is a rural area of Ripollès county, located in the province of Girona, in the north of Catalonia, between the towns of Ripoll and Olot.
Figure 1. Location of Vallfogona, Ripollès, Girona
The wireless network was composed of the following subsystems:
- A Wi-Fi access network to connect the final customers in Vallfogona area - A set of radio links to connect this WiFi area to a fibre backbone in Can Petafi - A backup radio link from Bellmunt to Centelles, to also connect to a fibre backbone
Figure 2: Meshed network from Vallfogona area to EYPESA HQ in Granollers
Milanyrepeater
Bellmuntrepeater
P.T.CanPetafi
PLC Communications (trunk)
Wireless Communications (trunk)
Wireless Communications (access)
Fiber optics connection
GPRS connection
MPLS network
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Wi-Fi access network
The Wi-Fi access network covers four areas. Those are:
Vallfogona
Planallonga
Piella
Les Artigues
All the houses are isolated and therefore, GPS coordinates are also included.
Figure 3. Access Network in Vallfogona area
Figure 4. Distribution Network in Les Artigues
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Figure 5. Distribution Network in Planallonga area
Figure 6. Distribution Network in Piella
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Radio Backbone
The following figure shows the design of the radio links from Verger to Milany, Bellmunt and Petafi. Both, Petafi and Bellmunt are connected to the fibre backbone using Xarxa Oberta de Catalunya (XOC) network.
Figure 7. Radio backbone links
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The equipment used in the Verger-Planallonga-Piella radio link is the following:
Cambium Canopy PMP 58430 AP and SM (5,8 GHz OFDM)
These devices have configurable channel bandwidth: 5, 10 or 20MHz and configurable cyclic prefix (1/4, 1/8 or 1/16) with a maximum range for Access Point (AP) of 1 to 30 miles for 5 and 10MHz channel bandwidth and 1 to 24 miles for 20MHz channel bandwidth.
The SM has Auto Transmit Power Control (TPC) with power set by the AP to provide power levelling for close-in SMs.
Figure 8. PMP 58430 AP with antenna (left) and PMP 58430 SM (right)
The equipment used in in Petafi-Bellmunt-Milany-Verger radio link is the following:
Cambium Force 110 in PTP Modality
Characteristics:
Frequency availability: 5150 – 5970 MHz
Throughput: 220 Mbps of real user data
Channel Bandwidth: 5, 10, 20 and 40 MHz
Security: 128-bit AES encryption (CCMP mode)
Peak gain: 25 dBi antenna gain with 30 dBm of transmit power
Ethernet Port: Gigabit Ethernet (802.3af compliant)
Figure 9. ePMP Force 110 PTP
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Fibre Network backbone
The fibre network backbone connects Vallfogona area with EYPESA NOC in Granollers.
Two links have been designed to offer redundancy to the system:
Fibre link directly from C-37 roadway to the Les Preses node
Radio link from Bellmunt to Collsuspina / Centelles
This second one was panned as a back-up of the direct fibre link in C-37.
The following picture presents the geographical scope of the network backbone.
Figure 10. Fibre connection backbone from Petafi and Collsuspina to EYPESA in Granollers
Optical interconnection
The Xarxa Oberta de Catalunya (XOC) optical fibre network connects EYPESA NOC in Granollers to Petafi substation.
XOC provides an active 30Mbps Ethernet service in Petafi. This network runs alongside the C-37 road to the nearest node in Les Preses. This node acts as a Label Edge Router. The service is delivered at the Network Operation Center of EYPESA in Granollers.
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Figure 11. Optical fibre connection from Petafi radio point to Les Preses
The edge equipment is a:
Cisco ME 3400G-2CS AC Ethernet Access Switch
The specifications of the device are the following:
Consumption: 15W (typical), 20W (maximum), 68 Btus per hour
AC: 100 to 240 VAC, 0.5 to 0.25A, 50 to 60 Hz
Figure 12. CPE CISCO ME-3400
As a backup solution to direct fibre link, a radio link Bellmunt and Collsuspina (in Osona county) has been deployed.
Figure 13. Bellmunt – Collsuspina elevation profile
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Figure 14. Backup radio link from Bellmunt to Collsuspina
From Collsuspina to Centelles, a second radio has been deployed to connect to the XOC access node in Centelles. This node allocates a fibre termination point of XOC and provides access to XOC fibre backbone to interconnect with EYPESA NOC in Granollers.
Complete network
Figure 15 shows the overall communications network that has been currently deployed for the Smart Rural Grid project.
Figure 15. Complete radio network for the Vallfogona prototype
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The prototype deployed in Vallfogona is connected through radio links to Bellmunt.
Bellmunt is the routing point which selects the link to connect the prototype to EYPESA NOC in Granollers.
Due to permit restrictions, the link C-37 has not been deployed yet (expected May 2017). Thus, the backup link was used as the main link during all the tests and certifications.
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3. PERFORMANCE AND RESULTS
Network Throughput
When the systems were deployed, network throughput tests were carried out. The results were the following:
Access Network in Planallonga
The channel bandwidth of the access network was also selected to be 20MHz (encrypted) in the 5GHz band (Frequency: 5735 MHz)
Verger
RSSI: -56 dBm
Downlink 20,51Mbps / Uplink 7,45 Mbps
Nou Piella
RSSI: -69 dBm
Downlink 11,43 Mbps / Uplink 3,98 Mbps
Radio backbone
The radio backbone from the fibre optics network alongside the C-37 and Verger was configured with a channel bandwidth of 20MHz.
P2P Milany - Bellmunt
Downlink RSSI: -52 dBm
Uplink RSSI: -50dBm
Ping: 5-6ms
Capacity: 64Mbps Downlink
80Mb Uplink
P2P Milany-Verger
Downlink RSSI: -55dBm
Uplink RSSI: -50dBm
Ping: 1-2ms
Capacity: 53.5Mb Downlink
89.9Mb Uplink
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Fibre Network backbone
The service was configured to provide 30Mbps, which was considered enough for the prototype, considering the different radio segments involved in the interconnection.
The fibre link achieved a sustainable throughput during the tests:
Figure 16. Fibre network throughput
Radio interconnection between Collsuspina and Bellmunt
The radio link between Collsuspina and Bellmunt was also tested to provide 30Mbps. The results were the following:
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Figure 17. 30Mbps Throughput radio link
Network availability
A network availability analysis has been carried out during the months that the prototype has been operational in order to verify its readiness for service.
The network availability was analysed for the three systems:
Access network
Radio backbone
Fibre interconnection
Access network
APs in Planallonga and Nou Piella were constantly monitored during the trial. Both performed well. Availability was mainly influenced by weather conditions (heavy rain, storms or snow).
The following graph show the availability for AP Planallonga:
Figure 18. Availability for AP in Planallonga
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Note that it was available at all time, with very short periods of time of data losses lower than 20%. The following graph shows the packet losses graph:
Figure 19. Packet losses in AP in Planallonga
The behaviour of the AP in Nou Piella was not that good and was down for a couple of days during the tests.
The following graph shows the availability for AP Nou Piella:
Figure 20. Availability for AP in Nou Piella
As can be seen, it was down from 10th to 13th March, for maintenance reasons due to the deployment of new technology. During the rest of the time, it behaved similar to the AP in Planallonga, and losses were below 20% for any specific day.
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Figure 21. Packet losses in AP in Nou Piella
With these results, we conclude that the system is robust enough to be fully operational.
Radio backbone
The radio backbone, as described in section number 2, comprised three links:
Verger
Bellmunt
Milany
None of the three links suffered any relevant loss of signal period during the trial.
The following graphs corroborate this statement:
Figure 22. Availability of the link in Verger
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Figure 23. Availability of the link in Bellmunt
Figure 24. Availability of the link in Milany
Shortages were very limited and always due to weather conditions. The following graphs show packet losses for the three links of the radio backbone:
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Figure 25. Packet losses in Verger
Figure 26. Packet losses in Bellmunt
Figure 27. Packet losses in Milany
The global radio system offered an availability >99%, which is an expected result for radio transmission systems.
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Fibre backbone
Fibre backbone had no shortages during the trial period (Jan – March 2017).
Thus, the availability during this period was of 100% for the fibre link.
For the backup link from Collsuspina to Bellmunt, availability was of 99,21%.
The following graphs show up and down times for this link.
02/01/2017 – 08/01/2017
09/01/2017 – 15/01/2017
16/01/2017 – 22/01/2017
23/01/2017 – 29/01/2017
30/01/2017 – 05/02/2017
06/02/2017 – 12/02/2017
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13/02/2017 – 19/02/2017
20/02/2017 – 26/02/2017
27/02/2017 – 05/03/2017
06/03/2017 – 12/03/2017
13/03/2017 – 19/03/2017
20/03/2017 – 26/03/2017
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4. CONCLUSIONS
The final wireless transmission system has been proven to be a robust telecom system to provide connectivity in the context of the Smart Rural Grid project.
No changes have been carried out from the initial deployment presented in D4.3. However, due to permits limitations, the backup link has been used as the main connection, while the link along C-37 is under construction (expected to be completed in May 2017).
The availability of the different systems is higher than 99%, except for the AP in Nou Piella, which due to maintenance reasons (due to the deployment of new technology) was down during several days in a row (10th to 13th March). The rest of the systems had limited shortages, all due to weather conditions (note that we are in a rural and elevated area, which means that heavy rain, storms and snow are usual in winter).
Availability of the backbones was (both radio and fibre), in any case, higher than 99%, which is a good availability time if we additionally consider that this is a backup system in the scope of the project.
In summary, we can conclude that the final wireless transmission network deployed in the context of the Smart Rural Grid project for the trial in Vallfogona area offers the required capacity, latency and availability and fulfils the design specifications included in D4.1. Minor incidents that prevented connectivity were mainly caused by weather conditions and are considered normal due to the orography of the area.
EXECUTIVE SUMMARY1. INTRODUCTION2. DESCRIPTION OF THE FINAL WIRELESS TRANSMISSION SYSTEMWi-Fi access networkRadio BackboneFibre Network backboneOptical interconnection
Complete network
3. PERFORMANCE AND RESULTSNetwork ThroughputAccess Network in PlanallongaRadio backboneP2P Milany - BellmuntP2P Milany-VergerFibre Network backboneRadio interconnection between Collsuspina and Bellmunt
Network availabilityAccess networkRadio backboneFibre backbone
4. CONCLUSIONS