Title :
Saturated Throughput of Burst Mode PCA with Hard DRPs in WiMedia MAC
Author :
Wong, David Tung Chong ; Chin, Francois ; Shajan, Mangalam Ramakrishnan ; Chew, Yong Huat
Author_Institution :
Inst. for Infocomm Res., Singapore
fDate :
March 31 2008-April 3 2008
Abstract :
An analytical formulation of the saturated throughput of burst mode prioritized contention access (PCA) with hard distributed reservation protocols (DRPs) and beacon period (BP) in WiMedia MAC is presented. The analytical framework is formulated for one hard DRP class and N PCA classes. The state transition diagram for the ith priority PCA class is modeled by a tri-dimensional discrete-time Markov chain. One dimension of the Markov chain is for the backoff stage, the second dimension is for the value of the backoff counter, while the third dimension is mainly for the delay due to DRP transmissions or BP. The probability of the number of consecutive DRP MASs and the number of consecutive PCA MASs are derived, taking into consideration of all possible combinations of the DRP locations in a superframe. These probabilities are essential for the modeling of the Markov chain.
Keywords :
Markov processes; access protocols; probability; 3D discrete-time Markov chain; WiMedia MAC; beacon period; burst mode prioritized contention access; hard distributed reservation protocols; medium access slot; probability; saturated throughput; state transition diagram; Access protocols; Communications Society; Counting circuits; Data communication; Media Access Protocol; Multiaccess communication; Principal component analysis; Quality of service; Throughput; Wireless LAN;
Conference_Titel :
Wireless Communications and Networking Conference, 2008. WCNC 2008. IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1997-5
DOI :
10.1109/WCNC.2008.294