作者
Mohammad H Amerimehr, Farid Ashtiani
发表日期
2014/6
期刊
IET Communications
卷号
8
期号
9
页码范围
1447-1458
出版商
The Institution of Engineering and Technology
简介
The authors investigate the content distribution among the vehicles of a cluster in a vehicular ad‐hoc network, exploiting network coding. The vehicles collaborate to disseminate the coded data packets, received from a roadside info‐station based on IEEE 802.11 medium access control (MAC) protocol. Two types of network coding are considered: random linear network coding (RLNC) over a large finite field and random XORed network coding (RXNC). An analytical model is proposed to address the effect of random access MAC as well as the correlation among received coded packets on the performance of content distribution. First, a p‐persistent carrier sense multiple access approximation for IEEE 802.11 MAC is adopted, to derive the expected amount of time necessary to deliver the whole information (a data file) to the vehicles, that is, content distribution delay, based on RLNC. Second, the content distribution …
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