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TWC
2008
13 years 9 months ago
2008
Abstract-- Existing space-time codes have focused on multipleantenna systems with linear modulation schemes such as phaseshift keying and quadrature amplitude modulation. Continuou...
TWC
2008
13 years 9 months ago
2008
Broadcasting allows efficient information sharing and fusion in wireless networks. In this paper, the energy efficiency limits in wireless broadcasting, defined as the minimal achi...
TWC
2008
13 years 9 months ago
2008
In this paper, we provide a complete study on the training based channel estimation issues for relay networks that employ the amplify-and-forward (AF) transmission scheme. We first...
TWC
2008
13 years 9 months ago
2008
The distance between nodes in a wireless sensor network (WSN) is an important factor in the performance that can be extracted from the network for many tasks. However, the distanc...
TWC
2008
13 years 9 months ago
2008
In this paper, we develop a random access scheme which combines the widely used binary exponential backoff (BEB) algorithm with a cross-layer tree algorithm (TA) that relies on suc...