Wireless Communications & Mobile Computing - Special Issue: Ultrawideband for Wireless Communications
Optimal throughput-delay scaling in wireless networks: part I: the fluid model
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
Proceedings of the 12th annual international conference on Mobile computing and networking
Capacity of UWB networks supporting multimedia services
QShine '06 Proceedings of the 3rd international conference on Quality of service in heterogeneous wired/wireless networks
Capacity analysis and MAC enhancement for UWB broadband wireless access networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Scheduling Efficiency of Distributed Greedy Scheduling Algorithms in Wireless Networks
IEEE Transactions on Mobile Computing
The capacity of wireless networks
IEEE Transactions on Information Theory
Optimal power control, scheduling, and routing in UWB networks
IEEE Journal on Selected Areas in Communications
Hi-index | 0.01 |
Ultra-wideband (UWB) communication is a promising enabling technology for future broadband wireless services. A simple, scalable, distributed, efficient medium access control (MAC) protocol is of critical importance to utilize the large bandwidth UWB channels and enable numerous new applications and services cost-effectively. In this paper, by investigating the characteristics of UWB communications, we propose a Distributed, EXclusive region (DEX) based MAC protocol. The proposed DEX protocol capitalizes on the spatial multiplexing gain of UWB networks by reserving exclusive regions (ER) surrounding the sender and receiver for data and acknowledgment (ACK) transmissions, so that users can efficiently and fairly share network resources in a distributed and asynchronous manner. We further quantify the network performance bounds and derive the optimal ER size to maximize the expected network transport throughput for a dense, multi-hop UWB network. Extensive simulation results demonstrate the efficiency and effectiveness of the DEX protocol. This work explores how to effectively utilize the wireless spatial capacity of distributed, multi-hop wireless networks by optimizing protocol parameters, instead of depending on more complicated control messages.