Title :
Performance analysis of MAC protocols for wireless LAN in Rayleigh and shadow fading channels
Author :
Kim, Jae Hyun ; Lee, Jong Kyu
Author_Institution :
Dept. of Comput. Sci. Eng., Hanyang Univ., Ansan, South Korea
Abstract :
The channel throughput and packet delay of wireless MAC (medium access control) protocols with Rayleigh fading, shadowing, and capture effect are analyzed. We consider CSMA/CA (carrier sense multiple access/collision avoidance) protocols as the wireless MAC protocols, since CSMA/CA protocols are based on the standard for wireless LANs (local area networks) IEEE 802.11. We analyze the channel throughput and packet delay for three types of CSMA/CA protocols; Basic CSMA/CA, stop-and wait CSMA/CA and 4-way handshake CSMA/CA. We calculate the capture probability of an AP (access point) in a channel with Rayleigh fading, shadowing and near-far effects, and we derive the throughput and packet delay for the various protocols. We have found that the 4-way handshake CSMA/CA protocol is superior to the other CSMA/CA protocols in high traffic load
Keywords :
Rayleigh channels; access protocols; carrier sense multiple access; delays; fading; packet radio networks; wireless LAN; 4-way handshake CSMA/CA; IEEE 802.11; MAC protocols; Rayleigh channels; Rayleigh fading; access point; basic CSMA/CA; capture effect; capture probability; carrier sense multiple access/collision avoidance; channel throughput; local area networks; medium access control protocols; near-far effects; packet delay; performance analysis; shadow fading channels; shadowing; stop-and wait CSMA/CA; traffic load; wireless LAN; Access protocols; Delay effects; Media Access Protocol; Multiaccess communication; Performance analysis; Rayleigh channels; Throughput; Wireless LAN; Wireless application protocol; Wireless sensor networks;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.632578
