International Journal of Scientific and Research Publications

IJSRP, Volume 4, Issue 1, January 2014 Edition [ISSN 2250-3153]


A Numerically efficient power optimization scheme for coded OFDM systems in achieving minimum frame error rate
      KVBL Deepthi, V. Rama Krishna Sharma, G. Santhosh Kumar
Abstract: Coded OFDM is a transmission technique that is used in many practical communication systems. In a coded OFDM system, source data are coded, interleaved and multiplexed for transmission over many frequency sub-channels. In a conventional coded OFDM system, the transmission power of each subcarrier is the same regardless of the channel condition. However, some subcarrier can suffer deep fading with multi-paths and the power allocated to the faded subcarrier is likely to be wasted. In this paper, we compute the FER and BER bounds of a coded OFDM system given as convex functions for a given channel coder, inter-leaver and channel response. The power optimization is shown to be a convex optimization problem that can be solved numerically with great efficiency. With the proposed power optimization scheme, near-optimum power allocation for a given coded OFDM system and channel response to minimize FER or BER under a constant transmission power constraint is obtained.

Reference this Research Paper (copy & paste below code):

KVBL Deepthi, V. Rama Krishna Sharma, G. Santhosh Kumar (2018); A Numerically efficient power optimization scheme for coded OFDM systems in achieving minimum frame error rate; Int J Sci Res Publ 4(1) (ISSN: 2250-3153). http://www.ijsrp.org/research-paper-0114.php?rp=P252185
©️ Copyright 2011-2022 IJSRP - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.