Title :
Effect of uplink multiple access scheme on traffic reshaping for a broadband GEO satellite network
Author :
Qian, Yi ; Hu, Rose ; Abu-Amara, Hosame ; Maveddat, Payam
Author_Institution :
Nortel Network, Richardson, TX, USA
Abstract :
We investigate the impact of uplink multiple access schemes on traffic reshaping for a meshed broadband VSAT network over geostationary (GEO) satellite. The system includes a bent-pipe satellite with a number of broadband VSATs carrying multimedia traffic. An integrated CAC and BOD algorithm is used for the uplink M-TDMA access. An OPNET(TM) simulator is developed to investigate the affects of the CAC/BOD algorithm on the different applications in the satellite networks. Source application traffic is modeled using one of the following ATM transfer capabilities; CBR, rt-VBR, nrt-VBR, ABR, and UBR. We perform detailed traffic studies to compare the source traffic with the traffic out of the uplink multiple access, We show by simulation and analysis that all traffic contracts for the CBR, rt-VBR, and nrt-VBR source traffic are violated after uplink access. The results provide guidelines on the design of a corrective traffic reshaping function that counter-acts the traffic reshaping caused by the CAC/BOD uplink multiple access of the satellite networks
Keywords :
VSAT networks; asynchronous transfer mode; broadband networks; mobile satellite communication; multimedia communication; packet radio networks; radio links; satellite ground stations; telecommunication congestion control; telecommunication traffic; time division multiple access; ABR; ATM transfer capabilities; BOD algorithm; CAC/BOD algorithm; CBR; LAN; OPNET simulator; UBR; bent-pipe satellite; broadband GEO satellite network; broadband VSAT; corrective traffic reshaping function; geostationary satellite; integrated CAC algorithm; meshed broadband VSAT network; multimedia traffic; nrt-VBR; rt-VBR; source application traffic; source traffic; traffic reshaping; traffic studies; uplink M-TDMA access; uplink multiple access scheme; Analytical models; Board of Directors; Computer aided manufacturing; Contracts; Lakes; Multimedia systems; Postal services; Satellites; Telecommunication traffic; Traffic control;
Conference_Titel :
Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5668-3
DOI :
10.1109/WCNC.1999.797813
