Data networks (2nd ed.)
MACAW: a media access protocol for wireless LAN's
SIGCOMM '94 Proceedings of the conference on Communications architectures, protocols and applications
Achieving MAC layer fairness in wireless packet networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Energy-efficient packet transmission over a wireless link
IEEE/ACM Transactions on Networking (TON)
Proceedings of the 11th annual international conference on Mobile computing and networking
Decentralized optimization for multichannel random access
IEEE Transactions on Communications
Cochannel interference avoidance MAC in wireless cellular networks
IEEE Transactions on Communications
Wireless Networking
IEEE Transactions on Signal Processing
Cross-layer optimization for OFDM wireless networks-part I: theoretical framework
IEEE Transactions on Wireless Communications
Cross-layer optimization for OFDM wireless networks-part II: algorithm development
IEEE Transactions on Wireless Communications
Opportunistic medium access for wireless networking adapted to decentralized CSI
IEEE Transactions on Wireless Communications
Power control in distributed cooperative OFDMA cellular networks
IEEE Transactions on Wireless Communications - Part 2
Opportunistic beamforming using dumb antennas
IEEE Transactions on Information Theory
Channels with block interference
IEEE Transactions on Information Theory
Exploiting decentralized channel state information for random access
IEEE Transactions on Information Theory
IEEE Communications Magazine
A survey on wireless mesh networks
IEEE Communications Magazine
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
Intelligent medium access for mobile ad hoc networks with busy tones and power control
IEEE Journal on Selected Areas in Communications
Hi-index | 0.00 |
In this paper, we solve a fundamental problem: how to use distributed random access to achieve the performance of centralized schedulers. We consider wireless networks with arbitrary topologies and spatial traffic distributions, where users can receive traffic from or send traffic to different users and different communication links may interfere with each other. The channels are assumed heterogeneous, and the random channel gains of different links may have different distributions. To resolve the network contention in a distributed way, each frame is divided into contention and transmission periods. The contention period is used to resolve conflicts, while the transmission period is used to send payload in collision-free scenarios. We design a multistage channel-aware Aloha scheme for the contention period to enable users with relatively better channel states to have higher probabilities of contention success while assuring fairness among all users. We show analytically that the proposed scheme completely resolves network contention and achieves throughput close to that of centralized schedulers. Furthermore, the proposed scheme is robust to any uncertainty in channel estimation. Simulation results demonstrate that it significantly improves network performance while maintaining fairness among different users. The proposed random access approach can be applied to different wireless networks, such as cellular, sensor, and mobile ad hoc networks, to improve quality of service.