- Title
- Myopic coding in wireless networks
- Creator
- Ong, Lawrence; Motani, Mehul
- Relation
- 39th Conference on Information Sciences and Systems (CISS 2005). Proceedings of the 2005 Conference on Information Sciences and Systems, The Johns Hopkins University, March 16–18, 2005 (Baltimore, MD 16-18 March, 2005)
- Relation
- http://ciss.jhu.edu
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- conference paper
- Date
- 2005
- Description
- We investigate the achievable rate of data transmission from sources to sinks through a multiple-relay network. We study achievable rates for omniscient coding, in which all nodes are considered in the coding design at each node. We find that, when maximizing the achievable rate, not all nodes need to “cooperate” with all other nodes in terms of coding and decoding. This leads us to suggest a constrained network, whereby each node only considers a few neighboring nodes during encoding and decoding. We term this myopic coding and calculate achievable rates for myopic coding. We show by examples that, when nodes transmit at low SNR, these rates are close to that achievable by omniscient coding, when the network is unconstrained . This suggests that a myopic view of the network might be as good as a global view. In addition, myopic coding has the practical advantage of being more robust to topology changes. It also mitigates the high computational complexity and large buffer/memory requirements of omniscient coding schemes.
- Subject
- achievable rates; data transmission; multiple-relay networks; omniscient coding; myopic coding
- Identifier
- http://hdl.handle.net/1959.13/921529
- Identifier
- uon:9330
- Rights
- Copyright © 2005 IEEE. Reprinted from the Proceedings of the 2005 Conference on Information Sciences and Systems, The Johns Hopkins University, March 16–18, 2005. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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