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Article: Reports summarize information technology study results from Z.K.M. Ho and co-researchers.(Report)
- Article from:
- Information Technology Newsweekly
- Article date:
- October 20, 2009
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According to recent research from Valbonne, France, "It is well known that cross-layer scheduling which adapts power, rate and user allocation can achieve significant gain on system capacity. However, conventional cross-layer designs all require channel state information at the base station (CSIT) which is difficult to obtain in practice."
"In this paper, we focus on cross-layer resource optimization based on ACK/NAK feedback flows in orthogonal frequency-division multiplexing (OFDM) systems without explicit CSIT. While the problem can be modeled as Markov decision process (MDP), brute-force approach by policy iteration or value iteration cannot lead to any ...