Title :
Speed-Based Adaptive Medium Access Control with CSMA/CA and Reserved Time Slots
Author :
Chau, Yawgeng A. ; Chen, Yao-Hua
Author_Institution :
Dept. of Commun. Eng., Yuan Ze Univ., Taiwan
Abstract :
For high-mobility terminals with link disconnection probabilities in wireless LAN environments, an adaptive medium access control based on CSMA/CA with RTS/CTS and reserved time slots is designed and analyzed. If the terminal speed is higher than a preset threshold, the scheme of reserved time slots is used, otherwise CSMA/CA with RTS/CTS is used. The frame structure of the adaptive medium access control is designed. The corresponding saturation throughputs of the adaptive medium access control and the CSMA/CA with RTS/CTS are analyzed under the consideration of link disconnection. Numerical results of throughput are presented for the adaptive medium access control and compared to those of CSMA/CA
Keywords :
carrier sense multiple access; probability; telecommunication congestion control; telecommunication terminals; wireless LAN; CSMA-CA; MAC; RTS-CTS; WLAN; carrier sense multiple access; collision avoidance; high-mobility terminal; link disconnection probability; reserved time slot; speed-based adaptive medium access control; wireless local area network; Access protocols; Adaptive control; Design engineering; Fading; Media Access Protocol; Multiaccess communication; Programmable control; Throughput; Vehicle driving; Wireless LAN;
Conference_Titel :
Sensor Networks, Ubiquitous, and Trustworthy Computing, 2006. IEEE International Conference on
Conference_Location :
Taichung
Print_ISBN :
0-7695-2553-9
DOI :
10.1109/SUTC.2006.127
