DocumentCode :
3376878
Title :
Channel Access Using Opportunistic Reservations and Virtual MIMO
Author :
Wang, Xin ; Garcia-Luna-Aceves, J.J. ; Sadjadpour, Hamid R.
Author_Institution :
Dept. of Comput. Eng., California Univ., Santa Cruz, CA
fYear :
2008
fDate :
3-7 Aug. 2008
Firstpage :
1
Lastpage :
6
Abstract :
We propose ORCHESTRA, a channel access protocol that uses reservations and virtual MIMO to provide high throughput and bounded channel access delays. Channel access process is divided into a contention-based access period and a scheduled access period. To attain high throughput, nodes build the channel schedule using the contention-based access period, and utilize the spatial multiplexing gain of virtual MIMO links in the scheduled access period. To attain bounded channel access delays, nodes reserve time slots through opportunistic reservations. We evaluate the performance of ORCHESTRA through numerical analysis and simulations, and show that it results in much better throughput, delay, and jitter characteristics than simply using MIMO nodes together with scheduled access (i.e., NAMA) or contention-based access (i.e., IEEE 802.11 DCF).
Keywords :
MIMO communication; radio access networks; wireless channels; channel access delays; channel access protocol; contention-based access period; opportunistic reservations; virtual MIMO links; Access protocols; Antenna arrays; Bit error rate; Channel capacity; Delay effects; Diversity methods; MIMO; Receiving antennas; Throughput; USA Councils;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Communications and Networks, 2008. ICCCN '08. Proceedings of 17th International Conference on
Conference_Location :
St. Thomas, US Virgin Islands
ISSN :
1095-2055
Print_ISBN :
978-1-4244-2389-7
Electronic_ISBN :
1095-2055
Type :
conf
DOI :
10.1109/ICCCN.2008.ECP.87
Filename :
4674247
Link To Document :
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