QShine '06 Proceedings of the 3rd international conference on Quality of service in heterogeneous wired/wireless networks
The Fourth International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness & Workshops
Adaptive power allocation with quality-of-service guarantee in cognitive radio networks
Computer Communications
Maximizing the effective capacity for wireless cooperative relay networks with QoS guarantees
IEEE Transactions on Communications
IEEE Transactions on Wireless Communications
Delay-optimal power and precoder adaptation for multi-stream MIMO systems
IEEE Transactions on Wireless Communications
Analysis of energy efficiency in fading channels under QoS constraints
IEEE Transactions on Wireless Communications
QoS-driven power allocation for multi-channel communication under delayed channel side information
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
MIMO wireless communications under statistical queueing constraints
Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing
Effective capacity analysis of cognitive radio channels for quality of service provisioning
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
QoS-driven power-allocation game over fading multiple-access channels
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Adaptive modulation in spectrum-sharing systems with delay constraints
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Effective capacity of superposition coding based mobile multicast in wireless networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Performance analysis of wireless hybrid-ARQ systems with delay-sensitive traffic
IEEE Transactions on Communications
Delay-optimal power and subcarrier allocation for OFDMA systems via stochastic approximation
IEEE Transactions on Wireless Communications
Effective capacity for interference and delay constrained cognitive radio relay channels
IEEE Transactions on Wireless Communications
Statistical QoS provisionings for wireless unicast/multicast of multi-layer video streams
IEEE Journal on Selected Areas in Communications
Capacity with explicit delay guarantees for generic sources over correlated Rayleigh channel
IEEE Transactions on Wireless Communications
Game-theoretic approach for QoS-aware resource competition in wireless networks
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Distributive stochastic learning for delay-optimal OFDMA power and subband allocation
IEEE Transactions on Signal Processing
Delay QoS provisioning in cognitive radio systems using adaptive modulation
Proceedings of the 6th ACM workshop on QoS and security for wireless and mobile networks
QoS analysis of a scheduling policy for heterogeneous users employing AMC jointly with ARQ
IEEE Transactions on Communications
The effective capacity of a time division downlink scheduling system
IEEE Transactions on Communications
Effective capacity of delay-constrained cognitive radio in Nakagami fading channels
IEEE Transactions on Wireless Communications
Effective capacity maximization in multi-antenna channels with covariance feedback
IEEE Transactions on Wireless Communications
Effective capacity analysis of cognitive radio channels for quality of service provisioning
IEEE Transactions on Wireless Communications
Queue length aware power control for delay- constrained communication over fading channels
Wireless Communications & Mobile Computing
Concurrency and Computation: Practice & Experience
Power-efficient resource allocation with QoS guarantees for TDMA fading channels
Wireless Communications & Mobile Computing
Power efficient scheduling over fading channel for cross-layer optimization
Wireless Communications & Mobile Computing
Wireless Personal Communications: An International Journal
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We propose a quality-of-service (QoS) driven power and rate adaptation scheme over wireless links in mobile wireless networks. Specifically, our proposed scheme aims at maximizing the system throughput subject to a given delay QoS constraint. First, we derive an optimal adaptation policy by integrating information theory with the concept of effective capacity for a block fading channel model. Our analyses reveal an important fact that there exists a fundamental tradeoff between throughput and QoS provisioning. In particular, when the QoS constraint becomes loose, the optimal power-control policy converges to the well-known water-filling scheme, where Shannon (ergodic) capacity can be achieved. On the other hand, when the QoS constraint gets stringent, the optimal policy converges to the total channel inversion scheme under which the system operates at a constant rate. Inspired by the above observations, we then consider a more practical scenario where variable-power adaptive modulation is employed over both block fading and Markov correlated fading channels. In both cases, we derive the associated power and rate adaptation policies. The obtained results suggest that the channel correlation has a significant impact on QoS-driven power and rate adaptations. The higher the correlation is, the faster the power-control policy converges to the total channel inversion when the QoS constraint becomes more stringent. Finally, we conduct simulations to verify that the adaptation policy proposed for Markov channel models can also be applied to the more general channel models.