Distributed and Cooperative Link Scheduling for Large-Scale Multihop Wireless Networks
| Autor: | Ananthram Swami, Yingbo Hua, Kezhu Hong |
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| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | EURASIP Journal on Wireless Communications and Networking, Vol 2007 (2007) |
| Druh dokumentu: | article |
| ISSN: | 1687-1472 1687-1499 |
| DOI: | 10.1155/2007/34716 |
| Popis: | A distributed and cooperative link-scheduling (DCLS) algorithm is introduced for large-scale multihop wireless networks. With this algorithm, each and every active link in the network cooperatively calibrates its environment and converges to a desired link schedule for data transmissions within a time frame of multiple slots. This schedule is such that the entire network is partitioned into a set of interleaved subnetworks, where each subnetwork consists of concurrent cochannel links that are properly separated from each other. The desired spacing in each subnetwork can be controlled by a tuning parameter and the number of time slots specified for each frame. Following the DCLS algorithm, a distributed and cooperative power control (DCPC) algorithm can be applied to each subnetwork to ensure a desired data rate for each link with minimum network transmission power. As shown consistently by simulations, the DCLS algorithm along with a DCPC algorithm yields significant power savings. The power savings also imply an increased feasible region of averaged link data rates for the entire network. |
| Databáze: | Directory of Open Access Journals |
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