GAME-theory-based cross-layer optimization for wireless DS-CDMA visual sensor networks

We propose a game-theory-based cross-layer optimization scheme for wireless Direct Sequence Code Division Multiple Access (DSCDMA) visual sensor networks. The scheme uses the Nash Bargaining Solution (NBS), which assumes that the nodes negotiate, with the help of a centralized control unit, on how to allocate resources. The NBS takes into account the video quality each node could achieve without making an agreement. The cross-layer optimization scheme determines the source coding rate, channel coding rate, and transmission power for each node. We compare the proposed game-theorybased scheme with competing schemes that minimize the average or maximum distortion among the nodes. Experimental results are presented and conclusions are drawn.

• Type: Journal
• Year: 2010
• Where: ICIP
• Authors: Lisimachos P. Kondi, Elizabeth S. Bentley
• Keywords: Code Division Multiple Access, Cross-layer Optimization Scheme, ICIP 2010, Image Processing, Nash Bargaining Solution