講演抄録/キーワード |
講演名 |
2007-05-10 09:50
Tradeoff between Spatial Reuse and Deafness Avoidance in Directional MAC Protocols for Ad Hoc Networks ○Masanori Takata・Masaki Bandai・Takashi Watanabe(Shizuoka Univ.) AN2007-10 |
抄録 |
(和) |
Directional antennas have great potential such as high spatial reuse and range extension. However, deafness is a crucial problem, caused by a lack of state information of neighbor nodes. This paper proposes two directional MAC protocols, DMAC/DA (Directional MAC with Deafness Avoidance) and RI-DMAC (Receiver-Initiated Directional MAC), to handle the deafness problem. DMAC/DA uses WTS (Wait To Send) frames to notify the on-going communication to potential transmitters that may experience deafness. RI-DMAC handles deafness reactively using a combination of sender-initiated and re-ceiver-initiated operations. The experimental results show that our proposed protocols outperform existing directional MAC protocols in terms of throughput, control overhead and RTS failure ratio. |
(英) |
Directional antennas have great potential such as high spatial reuse and range extension. However, deafness is a crucial problem, caused by a lack of state information of neighbor nodes. This paper proposes two directional MAC protocols, DMAC/DA (Directional MAC with Deafness Avoidance) and RI-DMAC (Receiver-Initiated Directional MAC), to handle the deafness problem. DMAC/DA uses WTS (Wait To Send) frames to notify the on-going communication to potential transmitters that may experience deafness. RI-DMAC handles deafness reactively using a combination of sender-initiated and re-ceiver-initiated operations. The experimental results show that our proposed protocols outperform existing directional MAC protocols in terms of throughput, control overhead and RTS failure ratio. |
キーワード |
(和) |
Ad Hoc Networks / Medium Access Control / Directional Antennas / Deafness Problem / / / / |
(英) |
Ad Hoc Networks / Medium Access Control / Directional Antennas / Deafness Problem / / / / |
文献情報 |
信学技報, vol. 107, no. 29, AN2007-10, pp. 53-58, 2007年5月. |
資料番号 |
AN2007-10 |
発行日 |
2007-05-02 (AN) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
AN2007-10 |