Coexistence Management in Wireless Networks
Explore the concept of coexistence management in wireless networks as detailed in the April 2016 document by IEEE 802.19, focusing on controlling the number of co-channel GCOs within a specific region to optimize network capacity.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
April 2016 doc.: IEEE 802.19-16/0070r0 Coexistence management over a region by controlling the number of cochannel GCOs Date: 2016-04-26 Address Authors: Name Affiliations Phone email Chen SUN Sony China Chen.Sun@sony.com.cn Notice: This document has been prepared to assist IEEE 802.19. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Submission Slide 1 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 Application scenario A CM manages a certain number of GCOs within a certain region The CM can instruct the GCOs to access the GLDB in order to obtain available spectrum within a given region in stead of a single location. By using statistical models, the CM can determine the network capacity over the number of co-channel GCOs. Then, the optimal number of GCOs that can operate in a given area can be deduced. Using this information, the CM can decide whether to allow a GCO to use a channel within the region by checking the number of active GCOs. Submission Slide 2 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 Example scenario CM Each vehicle is assumed to have one TV band access point (AP) providing wireless network to its passengers. The wireless network at each vehicle is considered as one GCO. RLSS with CE e.g., IEEE 802.11af AP Even if there are multiple STAs transmission inside the vehicle, it is still considered as one GCO due to the contained space. A software server (RLSS in 11af deployment scenario) controls the spectrum usage of the vehicles For example one company managing its own vehicles. City area management region Example of using 11af deployment Submission Slide 3 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 Problem statement N is the number of available channel for dynamic channel selection in order to avoid using the same channel between neighboring GCOs. Excessive number of GCOs operating at the same frequency will make coexistence issue (degradation on the network capacity). 2000 N=1 1800 N=2 N=3 1600 1400 1200 Network capacity [Mbits/s] 1000 800 600 400 200 0 0 20 40 60 Number of WSDs, M 80 100 120 140 160 Submission Slide 4 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 Solution By limiting the number of GCOs we can optimize the network capacity The optimal number of GCOs are the values of the proposed parameter 2000 N=1 1800 N=2 N=3 1600 1400 1200 Network capacity [Mbits/s] 1000 800 600 400 Optimal number of cochannel GCOs 200 0 0 20 40 60 Number of WSDs, M 80 100 120 140 160 Submission Slide 5 Chen SUN, Sony
January 2016 doc.: IEEE 802.19-16/0070r0 Procedures utilized (1/4) 5.2.2.1 WSO registration procedure o Through this procedure, the information on the available channels over an region is sent to the CM/CDIS Submission Slide 6 Chen Sun, Sony China
April 2016 doc.: IEEE 802.19-16/0070r0 Modified primitive ListOfWSORegistrations ::= SEQUENCE OF SEQUENCE { --New registration, registration update or deregistration operationCode OperationCode --WSO ID wsoID OCTET STRING OPTIONAL, --Network technology networkTechnology NetworkTechnology --Location geolocation Geolocation --Coverage area coverageArea CoverageArea -- Mobility information mobilityInformation MobilityInformation OPTIONAL, --Installation parameters installationParameters InstallationParameters --List of available frequencies listOfAvailableFrequencies -- Operating frequency if available operatingFrequency FrequencyRange -- Upper limit of transmission power level of its operating frequency [dBm] txPowerLimit REAL OPTIONAL, --Maximum number of controllable WSO maximumNumberOfControllableWSO INTEGER OPTIONAL, --Range of activity in which the available frequencies are valid for operationRange CHOICE { --Information of the bounded area defined by the multiple geolocations multipointRegion Region, --Rectangular area defined by the upper-left and lower right points of the rectangular rectangularRegion RectangularRegion} } OPTIONAL, OPTIONAL, OPTIONAL, OPTIONAL, OPTIONAL, ListOfAvailableFrequencies OPTIONAL, OPTIONAL, Submission Slide 7 Chen SUN, Sony
January 2016 doc.: IEEE 802.19-16/0070r0 Procedures utilized (2/4) 5.2.10.1 WSO reconfiguration procedure o This procedure is utilized to instruct the channel utilization of an GCO within an given region. o Submission Slide 8 Chen Sun, Sony China
April 2016 doc.: IEEE 802.19-16/0070r0 Updated message --Reconfiguration request ReconfigurationRequest ::= SEQUENCE OF SEQUENCE { --WSO ID wsoID OCTET STRING OPTIONAL, --Operating frequency operatingFrequency --List of operating channel number listOfOperatingChNumber --Transmission power limit [dBm] txPowerLimit REAL OPTIONAL, --Indication whether the channel is shared channelIsShared BOOLEAN OPTIONAL, --Transmission schedule txSchedule TxSchedule -- Channel classification information chClassInfo ChClassInfo -- Mobility information mobilityInformation --Additionally operable network technology addNetworkTechnology -- Energy detection setup information energyDetectionSetupInfo EnergyDetectionSetupInfo --Interference leakage weighting factor describes the weight on the interference of a WSO to co-channel WSOs, where the value is limited from 0 to 1. intLeakageFactor REAL OPTIONAL, --List of reference point locations of the high priority general authorized system for each available channels that can be used to generate null pattern towards high priority general authorized system, e.g., reduced directivity gain. listOfSpecUsageInfoOfRefPoints ListOfSpecUsageInfo --List of cochannel neighbor WSOs location information for available channels that can be used to generate null pattern toward cochannel WSO for better coexistence. listOfSpecUsageInfoOfNeightborWSOs ListOfSpecUsageInfo OPTIONAL, --Limit on the maximum number of co-channel GCOs that shall operate simultaneously within a given region and frequency coChGCOLimit CoCHGCOLimit, ... } FrequencyRange OPTIONAL, SEQUENCE OF INTEGER OPTIONAL, OPTIONAL, OPTIONAL, MobilityInformation OPTIONAL, NetworkTechnology OPTIONAL, OPTIONAL, OPTIONAL, Submission Slide 9 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 New data type CoChGCOLimit :: = SEQUENCE { --Management area operationRange CHOICE { --Information of the bounded area defined by the multiple geolocations multipointRegion Region, --Rectangular area defined by the upper-left and lower right points of the rectangular rectangularRegion RectangularRegion}, --Operating frequency operatingFrequency FrequencyRange, --Transmission power limit [dBm] txPowerLimit REAL, --Limit on the maximum number of GCOs given by the coexistence management service maxNumCoChGCO INTEGER} Submission Slide 10 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 Procedure utilized (3/4) For obtaining regarding to usage from another CM CM2 CM1 OperatingFreqInformationRequest OperatingFreqInformationResponse Submission Slide 11 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 Updated datatype CoexistenceReport ::= SEQUENCE OF SEQUENCE { networkID OCTET STRING OPTIONAL, networkTechnology listOfOperatingChNumbers } NetworkTechnology ListOfOperatingChNumbers OPTIONAL, OPTIONAL ChannelPriority ::= SEQUENCE OF SEQUENCE { channelNumber priority INTEGER OPTIONAL, --Range of activity in which the available frequencies are valid for operationRange CHOICE { --Information of the bounded area defined by the multiple geolocations multipointRegion Region, --Rectangular area defined by the upper-left and lower right points of the rectangular rectangularRegion RectangularRegion} INTEGER OPTIONAL, } Submission Slide 12 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 Procedure utilized (4/4) Send limit on the number of GCOs Submission Slide 13 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 Updated message CMReconfigurationRequest ::= SEQUENCE { --Indication for CE to be reconfigured reconfigTarget --List of operating channel number listOfOperatingChNumber --Transmission power limitation [dBm] txPowerLimit REAL OPTIONAL, --Indication whether the channel is shared channelIsShared BOOLEAN OPTIONAL, --Transmission schedule txSchedule TxSchedule -- Channel classification information chClassInfo ChClassInfo --Additionally operable network technology newNetworkTechnology wsoID OCTET STRING OPTIONAL, cmID cxID OPTIONAL, operatingFreqency --Transmission power limit [dBm] txPowerLimit REAL OPTIONAL, --Limit on the maximum number of co-channel GCOs that shall operate simultaneously within a given region and frequency coChGCOLimit CoChGCOLimit, ... } CxID OPTIONAL, SEQUENCE OF INTEGER OPTIONAL, OPTIONAL, OPTIONAL, NetworkTechnology OPTIONAL, OperatingFrequency OPTIONAL, Submission Slide 14 Chen SUN, Sony
April 2016 doc.: IEEE 802.19-16/0070r0 Flowchart Start (P#1) Coexistence discovery CDIS operation CM operation (P#2) Obtain the number of GCOs managed by different CMs (P#3) Calculate the number of co-channel GCOs assuming random locations within the management region (P#4) Make reconfiguration On the spectrum utilization Submission Slide 15 Chen SUN, Sony
