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Generalized Wireless Network Coding Schemes for Multihop Two-Way Relay Channels.
- Source :
- IEEE Transactions on Wireless Communications; Sep2014, Vol. 13 Issue 9, p5132-5147, 16p
- Publication Year :
- 2014
-
Abstract
- Due to the overwhelming complexity of multihop transmission and intermessage interference, only a limited amount of research has been carried out in the implementation of wireless network coding (WNC) for generalized multihop two-way relay channels (MH-TRCs), let alone the generalization of multihop WNC (MH-WNC) schemes. Our recent paper has showed that the MH-WNC scheme with fixed two transmission time intervals (TTIs) was unable to always outperform conventional non-NC schemes in outage performance for the MH-TRC with an arbitrary number of nodes. In view of this fact, a generalized MH-WNC scheme with multiple TTIs is designed for the $L$-node $K$-message MH-TRC in this paper. Closed-form expressions for the upper bound of the outage probability for two prominent relaying network coding strategies (i.e., analog network coding and compute-and-forward network coding) are derived. Moreover, by investigating the relationships between the outage probability and the numbers of nodes, messages, and TTIs, we obtain an optimal MH-WNC scheme that can achieve the best outage probability and always outperform non-NC in the MH-TRC with an arbitrary number of nodes. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 15361276
- Volume :
- 13
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Wireless Communications
- Publication Type :
- Academic Journal
- Accession number :
- 98193424
- Full Text :
- https://doi.org/10.1109/TWC.2014.2336652