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The Approximate Sum Capacity of the Symmetric Gaussian K-User Interference Channel
Approximate Sum Capacity the Symmetric Gaussian K-User Interference Channel Information Theory
2012/6/12
Interference alignment has emerged as a powerful tool in the analysis of multi-user networks. Despite considerable recent progress, the capacity region of the Gaussian K-user interference channel is s...
We describe a successive-cancellation \emph{list} decoder for polar codes, which is a generalization of the classic successive-cancellation decoder of Ar{\i}kan. In the proposed list decoder, up to $L...
An open question about Gabidulin codes is whether polynomial-time list decoding beyond half the minimum distance is possible or not. In this contribution, we give a lower and an upper bound on the lis...
An Adaptive Conditional Zero-Forcing Decoder with Full-diversity, Least Complexity and Essentially-ML Performance for STBCs
Adaptive Conditional Zero-Forcing Decoder Full-diversity Essentially-ML Performance STBCs
2012/5/24
A low complexity, essentially-ML decoding technique for the Golden code and the 3 antenna Perfect code was introduced by Sirianunpiboon, Howard and Calderbank. Though no theoretical analysis of the de...
Performance Analysis of Decode-and-Forward Relaying in Gamma-Gamma Fading Channels
Performance Analysis Decode-and-Forward Gamma-Gamma Fading Channels Information Theory
2012/5/24
Decode-and-forward (DF) cooperative communication based on free space optical (FSO) links is studied in this letter. We analyze performance of the DF protocol in the FSO links following the Gamma-Gamm...
Distributed Linear Precoder Optimization and Base Station Selection for an Uplink Heterogeneous Network
Distributed Linear Precoder Optimization Base Station Selection Uplink Heterogeneous Network Information Theory
2012/5/9
In a heterogeneous wireless cellular network, each user may be covered by multiple access points such as macro/pico/relay/femto base stations (BS). An effective approach to maximize the sum utility (e...
Joint Power and Resource Allocation for Block-Fading Relay-Assisted Broadcast Channels
wireless networks relaying resource allocation multiuser diversity long-term-evolution
2012/5/9
We provide the solution for optimizing the power and resource allocation over block-fading relay-assisted broadcast channels in order to maximize the long term average achievable rates region of the u...
Improving Achievable Rate for the Two-User SISO Interference Channel with Improper Gaussian Signaling
Two-User SISO Interference Channel Improper Gaussian Signaling Information Theory
2012/5/24
This paper studies the achievable rate region of the two-user single-input-single-output (SISO) Gaussian interference channel, when the improper Gaussian signaling is applied. Under the assumption tha...
Spectrum Leasing via Cooperation for Enhanced Physical-Layer Secrecy
Physical layer security secrecy capacity spectrum leasing Pareto boundary power gain region
2012/5/9
Spectrum leasing via cooperation refers to the possibility of primary users leasing a portion of the spectral resources to secondary users in exchange for cooperation. In the presence of an eavesdropp...
Realizable Rate Distortion Function and Bayesian FIltering Theory
Realizable Rate Distortion Function Bayesian FIltering Theory Information Theory
2012/4/16
The relation between rate distortion function (RDF) and Bayesian filtering theory is discussed. The relation is established by imposing a causal or realizability constraint on the reconstruction condi...
The DoF Region of the Multiple-Antenna Time Correlated Interference Channel with Delayed CSIT
The DoF Region the Multiple-Antenna Time Interference Channel Delayed CSIT Information Theory
2012/4/16
We consider the time-correlated multiple-antenna interference channel where the transmitters have (i) delayed channel state information (CSI) obtained from a latency-prone feedback channel as well as ...
Asymptotically good binary linear codes with asymptotically good self-intersection spans
Asymptotically good binary linear codes asymptotically good self-intersection spans Information Theory
2012/4/16
If C is a binary linear code, let C^2 be the linear code spanned by intersections of pairs of codewords of C. We construct an asymptotically good family of binary linear codes such that, for C ranging...
An Outer Bound for the Memoryless Two-user Interference Channel with General Cooperation
Information Theory Memoryless Two-user Interference Channel General Cooperation Outer Bound
2012/4/16
The interference channel models a wireless network where several source-destination pairs compete for the same resources. When nodes transmit simultaneously the destinations experience interference. T...
Mitigating Timing Errors in Time-Interleaved ADCs: a signal conditioning approach
Mitigating Timing Errors Time-Interleaved ADCs signal conditioning approach Information Theory
2012/4/23
Novel techniques based on signal-conditioning are presented to mitigate timing errors in time-interleaved ADCs. A theoretical bound on the achievable spurious signal content, on applying the technique...
Faster than Nyquist but Slower than Tropp et al
Faster than Nyquist but Slower Information Theory
2012/4/23
This paper presents a significant modification to the Random Demodulator (RD) of Tropp et al. for sub-Nyquist sampling of frequency-sparse signals. The modification, termed constrained random demodula...