Title :
Probability process analysis for wireless LANs with CSMA/CA protocol
Author :
Yue, Wuyi ; Matsumoto, Yutaka
Author_Institution :
Dept. of Appl. Math., Konan Univ., Kobe, Japan
Abstract :
This paper presents an exact probability process analysis for high-speed and realizing fully distributed wireless LANs with non-persistent carrier sense multiple access with collision avoidance (CSMA/CA). The collision avoidance portion of CSMA/CA in this model is performed with a random pulse transmission procedure, in which a user with a packet ready to transmit initially sends some pulse signals with random intervals within a collision avoidance period before transmitting the packet to verify a clear channel. The system model consists of a finite number of users to efficiently share a common channel. The time axis is slotted, and a time frame has an arbitrary large number of slots and includes two parts: the collision avoidance period and the packet transmission period. A discrete-time Markov process is used to model the system operation. The influence of possible length of the collision avoidance period and packet transmission period, and pulse transmission probabilities on the network performance is discussed, based on the numerical results of the utilization of channel and average packet delay for the different packet generation rate, the length of collision avoidance period and pulse transmission probabilities
Keywords :
Markov processes; access protocols; carrier sense multiple access; delays; packet radio networks; probability; wireless LAN; CSMA/CA protocol; average packet delay; channel delay; collision avoidance period length; common channel sharing; discrete-time Markov process; distributed wireless LAN; exact probability process analysis; high-speed wireless LAN; network performance; nonpersistent carrier sense multiple access; packet generation rate; packet transmission period; pulse transmission probabilities; random interval pulse signals; random pulse transmission; slotted time axis; system model; system operation; time frame; Access protocols; Collision avoidance; Computer networks; Local area networks; Markov processes; Mathematics; Multiaccess communication; Performance analysis; Wireless LAN; Wireless application protocol;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851304