Name
Abstract | ||
|---|---|---|
It is very important to assign proper relays to transmission pairs so as to explore the efficiency of cooperative communication CC. Most of the previous protocols were designed for ideal circumstances, where the Packet Drop Loss Ratio PDLR on each communication link is 0. Moreover, in hazardous surroundings, channel state is unstable, which is ignored by many algorithms. In this paper, we investigate an Opportunistic Relay Assignment Problem ORAP in a wireless cooperative network where channel state is unstable. We take into consideration the PFLR, while still guaranteeing energy-efficiency. We prove that this problem ORAP is NP-hard. A distributed algorithm, called DORAA, is proposed to solve this problem. We analyse the approximate performance ratio of DORAA. Our numerical results show that DORAA can reduce expected transmission time by 15.44% and save energy by 19.45% on average. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1504/IJSNET.2013.055004 | IJSNET |
Keywords | Field | DocType |
transmission time,ratio pdlr,channel state,cooperative communication,opportunistic relay assignment problem,problem orap,wireless cooperative network,packet drop loss,transmission pair,communication link,energy efficiency,wireless sensor networks,wireless networks | Wireless network,Cooperative diversity,Computer science,Network packet,Computer network,Distributed algorithm,Assignment problem,Transmission time,Wireless sensor network,Relay,Distributed computing | Journal |
Volume | Issue | ISSN |
13 | 3 | 1748-1279 |
Citations | PageRank | References |
1 | 0.36 | 20 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yindong Zhang | 1 | 64 | 6.91 |
| Liusheng Huang | 2 | 1082 | 123.52 |
| Henan Zhao | 3 | 304 | 20.72 |
| Hongli Xu | 4 | 502 | 85.92 |