Name
Abstract | ||
|---|---|---|
Ultra-wideband (UWB) is a physical (PHY) layer technology that promises high transmission rates, as well as high resistance to noise and multipath effects. However, the impulse-based nature of UWB, coupled with its low transmission power, makes it difficult to enable efficient detection of the signals. Consequently, conventional carrier-sensing based MAC protocols cannot be used with a UWB PHY. In this paper, we propose SASW-CR - a slotted Aloha MAC protocol for UWB networks with sliding contention window and cooperative retransmissions, which provides QoS support without the use of carrier sensing. SASW-CR utilizes the slotted-Aloha technique to avoid carrier sensing and reduce packet collisions. In addition, it makes use of differentiated contention windows to provide varying classes of QoS for different traffic classes. A cooperative retransmission technique is also introduced to improve the overall traffic throughput and reduce end-to-end delay. The efficacy of our protocol is demonstrated through simulations. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/LCN.2008.4664182 | LCN |
Keywords | Field | DocType |
slotted aloha mac protocol,traffic throughput,cooperative retransmissions,carrier-sensing based mac protocols,transmission rates,medium access control protocol,quality of service,packet collisions reduction,ultra-wideband sensor networks,ultra wideband communication,impulse-based nature,end-to-end delay,access protocols,uwb sensor network,wireless sensor networks,telecommunication traffic,sliding contention window,qos support,physical layer technology,ultra wideband,protocols,sensor network,throughput,end to end delay | End-to-end delay,Aloha,Retransmission,Computer science,Network packet,Computer network,Quality of service,Throughput,PHY,Wireless sensor network | Conference |
ISSN | ISBN | Citations |
0742-1303 | 978-1-4244-2413-9 | 3 |
PageRank | References | Authors |
0.40 | 3 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jicong Tan | 1 | 3 | 0.40 |
| Mun Choon Chan | 2 | 1130 | 97.54 |
| Hwee Xian Tan | 3 | 112 | 11.26 |
| Peng Yong Kong | 4 | 133 | 18.92 |
| Chen-Khong Tham | 5 | 925 | 82.63 |