Proceedings ArticleDOI
On fading MAC channels with asymmetric CSI
Kamal Singh,Sibi Raj B. Pillai,Bikash Kumar Dey +2 more
- pp 2626-2630
Reads0
Chats0
TLDR
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.Abstract:
We consider a distributed MAC setting with block-wise flat fading links and full receiver CSI (channel state information). Of the L transmitters, a subset is assumed to have knowledge of the global CSI vector in each block, whereas the remaining users have access only to their respective link qualities, i.e. each one in the latter set is unaware of the quality of other links. Outage is not allowed in any communication block. We propose 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, which includes the popular Rayleigh, Ricean etc.read more
Citations
More filters
Proceedings ArticleDOI
On the adaptive sum-capacity of fading MACs with distributed CSI and non-identical links
TL;DR: This work considers a two-user block-fading MAC with distributed channel state information (CSI), where each user has access to only its own fading coefficients, and evaluates the adaptive sum-capacity of MAC channels with general fading distributions.
Dissertation
TELECOM ParisTech Spécialité « Electronique et Communications » présentée et soutenue publiquement par New Ways of Exploiting Feedback in Memoryless Broadcast Channels
TL;DR: A scheme for rate-limited feedback that uses the feedback in an intermittent way, which achieves all rates R up to capacity C with an L-th order exponential decay of the probability of error if the feedback rate is no smaller than (L-1)R, for some positive integer L.
Proceedings ArticleDOI
MAC channel with states for pulse-based communication systems
Vijay Anavangot,Kamal Singh +1 more
TL;DR: 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.
References
More filters
Proceedings ArticleDOI
Information capacity and power control in single-cell multiuser communications
Raymond Knopp,Pierre A. Humblet +1 more
TL;DR: By examining the bit error-rate with antipodal signalling, it is shown that an increase in capacity over a perfectly-power controlled (Gaussian) channel can be achieved, especially if the number of users is large, and the inherent diversity in multiuser communications over fading channels is shown.
Book ChapterDOI
Network Information Theory
Thomas M. Cover,Joy A. Thomas +1 more
TL;DR: A system with many senders and receivers contains many new elements in the communication problem: interference, cooperation and feedback; these are the issues that are the domain of network information theory.
Journal ArticleDOI
The multiple-access channel with partial state information at the encoders
Y. Cemal,Yossef Steinberg +1 more
TL;DR: A single-letter characterization of the capacity region of that channel for the general case where there are no restrictions on the structure of the SI at the two encoders, and for the special case where the SI is degraded.
Proceedings ArticleDOI
Multiple-Access Channels with Distributed Channel State Information
TL;DR: A multiple-access channel with two state components, where the first sender knows only the first state component, the second sender knowsonly the second component, and the receiver knows both components is considered.
Proceedings ArticleDOI
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.