Name
Abstract | ||
|---|---|---|
Different emerging IEEE 802.15.4 wireless personal area networks (WPANs) are one solution for wireless sensor networks (WSNs), where applications are restricted by low data rate, short transmission distance, and low power consumption. The frame transmission mechanism of the IEEE 802.15.4 standard, which adopts the blind random backoff mechanism, was designed to minimize power consumption. However, it cannot provide satisfactory performance in a realistic hidden-node environment, because it may incur a hidden-node collision chain situation and unexpectedly limit the overall network capacity. For each successful data transmission, any inefficient transmission mechanism will incur prolonged access delay and will consume too much power. Moreover, the current design becomes inefficient as the number of devices significantly increases. As a solution, we propose a new multiple access protocol with improved efficiency at the sublayer between the media access control layer and the physical layer, i.e., a carrier sense multiple access with collision freeze (CSMA/CF) protocol, which comprises a collision resolving scheme and a P-frozen contention strategy. The CSMA/CF protocol can quickly alleviate aggravated collision situations in a hidden-node environment. Such a particular collision phenomenon is denoted as a collision chain problem (CCP). The impact from CCP is thoroughly discussed and analyzed. As confirmed by the results of analysis and performance evaluations, the proposed CSMA/CF protocol can achieve significant performance improvement in energy conservation, access delay reduction, and transmission reliability enhancement. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/TVT.2008.928634 | IEEE T. Vehicular Technology |
Keywords | Field | DocType |
collision chain,multiple access protocol,power consumption,wireless personal area network,carrier sense multiple access system,realistic hidden-node environment,wireless sensor network,energy conservation,media access control layer,personal area networks,ieee 802.15.4,collision resolving scheme,csma-cf protocol,access protocols,hidden node,carrier sense multiple access,wireless sensor networks,wireless sensor network (wsn),data transmission,ieee 802.15.4 wpan,blind random backoff mechanism,collision freeze protocol,p-frozen contention strategy,media access control,physical layer | Multiple Access with Collision Avoidance for Wireless,Wireless network,Media access control,Data transmission,Computer science,Computer network,Physical layer,Hidden node problem,Channel access method,IEEE 802.15 | Journal |
Volume | Issue | ISSN |
58 | 3 | 0018-9545 |
Citations | PageRank | References |
13 | 0.66 | 13 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Shiann-Tsong Sheu | 1 | 463 | 50.90 |
| Yun-yen Shih | 2 | 51 | 4.60 |
| Wei-Tsong Lee | 3 | 171 | 30.59 |