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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chin Keong Ho Peng Hui Tan Sumei Sun |
| Copyright Year | 2010 |
| Abstract | In this paper, we employ a relay for scheduling with deadline, i.e., a relay assists to deliver a given number of bits from a source to a destination over a fixed number of slots. Prior to every transmission, the channel of the present slot is made known to all nodes, but not of future slots. We seek to minimize the sum energy used, by choosing the transmission power and transmission duration of each node dynamically slot by slot. Assuming a decode-and-forward scheme for every slot, we obtain the optimal policy via dynamic programming. We also propose and analyze an asymptotically optimal policy that can be solved as a series of convex optimization problems. Numerical results show that the proposed policy gives a tight upper bound on the minimum sum energy, and that a significant fraction of energy can be saved with relaying. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 214269 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424464029 |
| ISSN | 19381883 |
| e-ISBN | 9781424464043 |
| DOI | 10.1109/ICC.2010.5502589 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-05-23 |
| Publisher Place | South Africa |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Relays Energy efficiency Decoding Upper bound Power system relaying Peer to peer computing Streaming media Protocols Communications Society Sun |
| Content Type | Text |
| Resource Type | Article |
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