Computer Science – Other Computer Science
Scientific paper
2009-10-05
Computer Science
Other Computer Science
4 pages, 8 figures, IEEE International Conference on Signal Processing and Communications, 2007. ICSPC 2007
Scientific paper
In this paper, a new scheme of downlink co-channel interference (CCI) cancellation in OFDM cellular networks is introduced for users at the cell-edge. Coordinated symbol transmission between base stations (BS) is operated where the same symbol is transmitted from different BS on different sub-carriers. At the mobile station (MS) receiver, we introduce a soft decision maximum likelihood CCI canceler and a modified maximum ratio combining (M-MRC) to obtain an estimate of the transmitted symbols. Weights used in the combining method are derived from the channels coefficients between the cooperated BS and the MS. Simulations show that the proposed scheme works well under frequency-selective channels and frequency non-selective channels. A gain of 9 dB and 6 dB in SIR is obtained under multipath fading and flat-fading channels, respectively.
Chang KyungHi
Mohaisen Manar
No associations
LandOfFree
Co-Channel Interference Cancellation in OFDM Networks using Coordinated Symbol Repetition and Soft Decision MLE CCI Canceler 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 Co-Channel Interference Cancellation in OFDM Networks using Coordinated Symbol Repetition and Soft Decision MLE CCI Canceler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Co-Channel Interference Cancellation in OFDM Networks using Coordinated Symbol Repetition and Soft Decision MLE CCI Canceler will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-9792