Proceedings ArticleDOI
MAC channel with states for pulse-based communication systems
Vijay Anavangot,Kamal Singh +1 more
- pp 1-6
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TLDR
This work considers a two-user binary multiple access setup suitable for pulse based communications and proposes adaptive communication schemes, which also ensure outage-free communication in any transmission block.Abstract:
We consider a two-user binary multiple access setup suitable for pulse based communications. The link from each user to the receiver is modeled by independent time-varying Z-channel. We consider the cross-over probabilities of the Z-channels as the state of the process. Each user has access only to its own state process and is unaware of the other user's states. The receiver observes the superposition of the symbols from the links. Assuming a block fading state process, we propose adaptive communication schemes, which also ensure outage-free communication in any transmission block. Furthermore, the proposed strategies turn out to be throughput optimal for highly dispersive systems.read more
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On the sum capacity of multiaccess block-fading channels with individual side information
TL;DR: This work considers the problem of finding optimal, fair and distributed power-rate strategies to achieve the sum capacity of the Gaussian multiple-access block-fading channel and proposes a distributed strategy called the 'midpoint' strategy which is optimal when the system cannot tolerate outage.
Proceedings ArticleDOI
On fading MAC channels with asymmetric CSI
TL;DR: A distributed MAC setting with block-wise flat fading links and full receiver CSI (channel state information) is considered, which proposes efficient power-allocation and rate-adaptation strategies which are sum-rate optimal when users in each subset observe identical fading distributions chosen from a class.
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