Name
Abstract | ||
|---|---|---|
In IEEE 802.11 standard, distributed coordination function (DCF) uses binary exponential backoff (BEB) algorithm to resolve collisions. However, performance of DCF with BEB decreases as the number of contending stations increases. To solve this problem, enhanced gentle DCF (EGDCF) and binary negative-exponential backoff algorithm (BNEB) have been proposed. In EGDCF algorithm, each station counts the number of consecutive successful transmissions in present backoff stage. If the number of consecutive successful transmissions reaches the predefined maximum value, station decreases its backoff stage. BNEB algorithm maintains a maximum contention window size during collisions and reduces a contention window size into half after complete transmission without retransmission. Since these two algorithms control backoff stage and contention window based on estimation of the number of stations, they improve performance of DCF. However, DCF cannot support differential quality of services (QoS) So IEEE 802.11e has adopted EDCA for contention-based medium access mechanism. In this paper, we adopt EGDCF and BNEB algorithms into EDCA to effectively support differentiated services in wireless LAN. We evaluate performance of conventional EDCA and EDCA with EGDCF and BNEB under saturation environment. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1007/978-3-540-69839-5_67 | ICCSA (1) |
Keywords | Field | DocType |
performance evaluation,present backoff stage,enhanced gentle dcf,backoff stage,binary negative-exponential backoff algorithm,conventional edca,consecutive successful transmission,binary exponential backoff,bneb algorithm,dcf improvement algorithms,contention window,egdcf algorithm,quality of service,exponential backoff,differentiated service | Exponential backoff,Differentiated services,Computer science,Retransmission,Computer network,Quality of service,Algorithm,Real-time computing,Distributed coordination function,IEEE 802,Differential quality,Binary number | Conference |
Volume | ISSN | Citations |
5072 | 0302-9743 | 0 |
PageRank | References | Authors |
0.34 | 10 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Sueng Jae Bae | 1 | 153 | 15.92 |
| Hyung Joo Ki | 2 | 6 | 1.96 |
| Min Young Chung | 3 | 452 | 72.92 |