The Wideband Slope of Interference Channels: The Large Bandwidth Case

Details The Wideband Slope of Interference Channels: The Large Bandwidth Case The Wideband Slope of Interference Channels: The Large Bandwidth Case

2010-10-27

arxiv.org/abs/1010.5661v2

Computer Science

Information Theory

Scientific paper

It is well known that minimum received energy per bit in the interference channel is -1.59dB as if there were no interference. Thus, the best way to mitigate interference is to operate the interference channel in the low-SNR regime. However, when the SNR is small but non-zero, minimum energy per bit alone does not characterize performance. Verdu introduced the wideband slope S_0 to characterize the performance in this regime. We show that a wideband slope of S_0/S_{0,no interference}=1/2 is achievable. This result is similar to recent results on degrees of freedom in the high SNR regime, and we use a type of interference alignment using delays to obtain the result. We also show that in many cases the wideband slope is upper bounded by S_0/S_{0,no interference}<=1/2 for large number of users K .

Affiliated with

Also associated with

No associations

Rating

The Wideband Slope of Interference Channels: The Large Bandwidth Case 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 The Wideband Slope of Interference Channels: The Large Bandwidth Case, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Wideband Slope of Interference Channels: The Large Bandwidth Case will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-485552