Title :
Delay statistics for selective repeat ARQ protocol in multi-rate wireless networks with non-instantaneous feedback
Author :
Le, Long B. ; Hossain, Ekram
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man.
Abstract :
We analyze the delay statistics for the selective repeat ARQ (SR-ARQ) protocol in a multi-rate wireless network with non-instantaneous feedback. Multi-rate transmission is assumed to be achieved through adaptive modulation, where each transmission mode corresponds to one state of a finite state Markov channel (FSMC) model. The problem is formulated as a quasi-birth and death (QBD) process from which the exact delay statistics for the SR-ARQ protocol is obtained. Our model removes the weaknesses of using a two-state Markov channel such as its inaccuracy in predicting the delay performance for a wireless access, error control protocol and its inability to capture multi-rate transmission. We validate the analysis by simulations and present typical numerical results, which reveal the impacts of the channel and the system parameters on the performance of a multi-rate wireless network
Keywords :
Markov processes; adaptive modulation; automatic repeat request; fading channels; feedback; protocols; radio access networks; adaptive modulation; delay statistics; error control protocol; finite state Markov channel model; multirate transmission; multirate wireless networks; noninstantaneous feedback; quasibirth and death process; selective repeat ARQ protocol; wireless access; Access protocols; Automatic repeat request; Delay; Design for quality; Feedback; Predictive models; Statistical analysis; Statistics; Wireless application protocol; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1578207
