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6 papers · 1 filter
A Survey on Delay-Aware Resource Control for Wireless Systems --- Large Deviation Theory, Stochastic Lyapunov Drift and Distributed Stochastic Learning
Ying Cui, Vincent K. N. Lau, Rui Wang +2
In this tutorial paper, a comprehensive survey is given on several major systematic approaches in dealing with delay-aware control problems, namely the equivalent rate constraint a…
User Scheduling for Heterogeneous Multiuser MIMO Systems: A Subspace Viewpoint
Xinping Yi, Edward Au
In downlink multiuser multiple-input multiple-output (MU-MIMO) systems, users are practically heterogeneous in nature. However, most of the existing user scheduling algorithms are…
Improving Energy Efficiency Through Multimode Transmission in the Downlink MIMO Systems
Jie Xu, Ling Qiu, Chengwen Yu
Adaptively adjusting system parameters including bandwidth, transmit power and mode to maximize the "Bits per-Joule" energy efficiency (BPJ-EE) in the downlink MIMO systems with im…
Robust Lattice Alignment for K-user MIMO Interference Channels with Imperfect Channel Knowledge
Huang Huang, Vincent K. N. Lau, Yinggang Du +1
In this paper, we consider a robust lattice alignment design for K-user quasi-static MIMO interference channels with imperfect channel knowledge. With random Gaussian inputs, the c…
On the Signature Calculus for finite fields of order square of prime numbers
Qizhi Zhang
In [Huang-Raskind 2009], the authors proved that the discrete logarithm problem in a prime finite field is random polynomial time equivalent to computing the ramification signature…
Multi-Relay Selection Design and Analysis for Multi-Stream Cooperative Communications
Shunqing Zhang, Vincent K. N. Lau
In this paper, we consider the problem of multi-relay selection for multi-stream cooperative MIMO systems with relay nodes. Traditionally, relay selection approaches are primar…