Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems

Details Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems

2010-01-13

arxiv.org/abs/1001.2298v1

Computer Science

Information Theory

17 pages; 1 figure. Shorter version of this paper was submitted to ISIT 2010

Scientific paper

This paper addresses the issue of phase noise in OFDM systems. Phase noise (PHN) is a transceiver impairment resulting from the non-idealities of the local oscillator. We present a case for designing a turbo receiver for systems corrupted by phase noise by taking a closer look at the effects of the common phase error (CPE). Using an approximate probabilistic framework called variational inference (VI), we develop a soft-in soft-out (SISO) algorithm that generates posterior bit-level soft estimates while taking into account the effect of phase noise. The algorithm also provides an estimate of the phase noise sequence. Using this SISO algorithm, a turbo receiver is designed by passing soft information between the SISO detector and an outer forward error correcting (FEC) decoder that uses a soft decoding algorithm. It is shown that the turbo receiver achieves close to optimal performance.

Affiliated with

Also associated with

No associations

Rating

Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbo Receiver Design for Phase Noise Mitigation in OFDM Systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-566843