| Paper: | SPCOM-P10.8 | ||
| Session: | Multi-Carrier Systems | ||
| Time: | Thursday, May 18, 16:30 - 18:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing for Communication: Multi-carrier, OFDM, and DMT communication | ||
| Title: | Bit and Power Allocation for Goodput Optimization in Coded OFDM Systems | ||
| Authors: | Bertrand Devillers, Luc Vandendorpe, Université Catholique de Louvain, Belgium | ||
| Abstract: | We focus on resource allocation in a coded orthogonal frequency division multiplexing system. A frame-oriented transmission with convolutional coding and Viterbi decoding is considered. We suppose that only error-free frames are kept by the receiver, other frames are thrown away and have to be retransmitted. As a consequence, the only meaningful criterion for evaluating the performance of such a system is the error-free rate, or goodput. This criterion is a good compromise between the rate and bit error probability criterions. We here present a formulation for the goodput of the system and propose a bit and power allocation algorithm maximizing it. The proposed algorithm is then compared with other existing resource allocation strategies. Simulation results show that the proposed algorithm significantly improves the performance. | ||
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