722 citations · 4.3k across the 116 of their papers we have counts for
9 papers · 1 filter
Distributive Subband Allocation, Power and Rate Control for Relay-Assisted OFDMA Cellular System with Imperfect System State Knowledge
Ying Cui, Vincent K. N. Lau, Rui Wang
In this paper, we consider distributive subband, power and rate allocation for a two-hop transmission in an orthogonal frequency-division multiple-access (OFDMA) cellular system wi…
Delay-Optimal Power and Subcarrier Allocation for OFDMA Systems via Stochastic Approximation
Vincent K. N. Lau, Ying Cui
In this paper, we consider delay-optimal power and subcarrier allocation design for OFDMA systems with subcarriers, mobiles and one base station. There are queues at…
Event-Driven Optimal Feedback Control for Multi-Antenna Beamforming
Kaibin Huang, Vincent K. N. Lau, Dongku Kim
Transmit beamforming is a simple multi-antenna technique for increasing throughput and the transmission range of a wireless communication system. The required feedback of channel s…
Delay-Sensitive Distributed Power and Transmission Threshold Control for S-ALOHA Network with Finite State Markov Fading Channels
Huang Huang, Vincent K. N. Lau
In this paper, we consider the delay-sensitive power and transmission threshold control design in S-ALOHA network with FSMC fading channels. The random access system consists of an…
A Low-Overhead Energy Detection Based Cooperative Sensing Protocol for Cognitive Radio Systems
Shunqing Zhang, Tianyu Wu, Vincent K. N. Lau
Cognitive radio and dynamic spectrum access represent a new paradigm shift in more effective use of limited radio spectrum. One core component behind dynamic spectrum access is the…
A New Scaling Law on Throughput and Delay Performance of Wireless Mobile Relay Networks over Parallel Fading Channels
Rui Wang, Vincent K. N. Lau, Kaibin Huang
In this paper, utilizing the relay buffers, we propose an opportunistic decode-wait-and-forward relay scheme for a point-to-point communication system with a half-duplexing relay n…