Reservation-based Distributed Collision Avoidance Channel Access Scheme for WLAN

被引：3
|
作者：
Li, Qing [1 ]
机构：
[1] Hitachi Amer, Wireless Syst Res Lab, San Jose, CA 95131 USA
来源：
GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE | 2008年
关键词：
Backoff Counter (BC); DCF; IDLE state; IN state; Reservation-based Distributed Collision Avoidance (RDCA); Reservation Table; OUT State;
D O I：
10.1109/GLOCOM.2008.ECP.1020
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
WLAN relies on distributed carrier sensing multiple access mechanism at each node to contend for the access to the channel. Each station has to wait for a certain amount of channel idle time to avoid collisions before each transmission, which leads to a large amount of bandwidth wastage. This paper proposed an efficient reservation based channel access mechanism for WLAN. The proposed scheme reduces the number of idle slots and avoids collisions compared to DCF by advertising the future channel access parameters in advance. It provides more efficient channel access and less collisions than DCF. Consequently, it is suitable for reliable traffic transmission with delay requirements, such as video and audio delivery.
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页数：5
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