Asymptotic upper bound on the packet propagation speed in WANETs with directional antennas

Yin Chen, Jiajia Liu, Xiaohong Jiang, Osamu Takahashi, Norio Shiratori

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The lack of understanding on the fundamental performance limits is a major obstacle stunting the application of wireless ad hoc networks (WANETs). The upper bound on the packet propagation speed, an important component of the performance limits, has recently attracted a lot of academic interest. While the metric has been investigated for several network scenarios, two important aspects remain unexplored. The first one is that the impact of local delay on packet propagation speed is largely neglected and the other one is that the packet propagation speed remains unknown when using directional antennas. In this paper, we consider a WANET, where opportunistic aloha with transmission probability p is adopted for packet delivery and each node equips a general directional antenna for data transmission. We first derive the coverage probability in the considered network and then proceed to analyze the asymptotic upper bound on the packet propagation speed. Simulation and numerical studies are also conducted to validate and illustrate the theoretical results. Our results show that there exists a threshold of transmission probability, independent of node density and antenna pattern, above which the upper bound is zero. Below the threshold, the upper bound is a positive constant; furthermore, using directional antenna can provide a performance improvement, which increases as the antenna directivity increase.

本文言語English
ホスト出版物のタイトル2013 IEEE/CIC International Conference on Communications in China, ICCC 2013
ページ571-576
ページ数6
DOI
出版ステータスPublished - 2013
イベント2013 IEEE/CIC International Conference on Communications in China, ICCC 2013 - Xi'an
継続期間: 2013 8 122013 8 14

Other

Other2013 IEEE/CIC International Conference on Communications in China, ICCC 2013
CityXi'an
Period13/8/1213/8/14

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信

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