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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yindong Zhang Liusheng Huang Hongli Xu Xueyong Xu |
| Copyright Year | 2009 |
| Abstract | Because of rapid channel attenuation in lossy environment, there is a severe packet drop loss problem in wireless ad hoc networks. Though MIMO (Multi-Input Multi-Output) technology can alleviate this effect greatly, it will result in higher transmission energy depletion as using more transmit antennas. Lots of schemes have been proposed to reduce such energy cost by transmit antenna selection. However, most of those only consider QoS requirements between neighbor nodes while ignoring QoS requirements for entire network. In this paper, we investigate an energy-efficient transmit antenna selection problem for many-to-one communications, while guaranteeing a certain packet drop loss ratio from any node to the sink. We prove that this problem (Transmit Antenna Selection Problem, TASP) is NP-hard. Thus, a greedy algorithm TASA (Transmit Antenna Selection Algorithm) is proposed to solve this problem. This paper also prove the correctness of the proposed algorithm and the time complexity of TASA algorithm is O(|E|+|V|×M_T), where |V| represents the number of nodes, |E| indicates the number of links and M_T is the number of transmit antennas on each node, respectively. Our numerical results show that in a 100 node network, TASA can reduce transmission energy cost by 44.3% on average. |
| Starting Page | 728 |
| Ending Page | 733 |
| File Size | 259379 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424457885 |
| ISSN | 15219097 |
| e-ISBN | 9781424457892 |
| DOI | 10.1109/ICPADS.2009.15 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-12-08 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Transmitting antennas MIMO Ad hoc networks Propagation losses Mobile ad hoc networks Costs Attenuation Energy efficiency Antenna accessories Computer science packet drop loss ratio multi-input multi-output (MIMO) transmit antenna selection |
| Content Type | Text |
| Resource Type | Article |
| Subject | Hardware and Architecture |
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