Wireless medium access control protocols
IEEE Communications Surveys & Tutorials
Spectral efficiency in the wideband regime
IEEE Transactions on Information Theory
Optimal power control, scheduling, and routing in UWB networks
IEEE Journal on Selected Areas in Communications
MAC protocol design and optimization for multi-hop ultra-wideband networks
IEEE Transactions on Wireless Communications
Admission region of triple-play services in wireless home networks
Computer Communications
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We analyze the capacity of UWB networks supporting multimedia services by calculating the number of multimedia connections that can be supported in a UWB network based on IEEE 802.15.3 Medium Access Control (MAC) protocol, taking into consideration the overheads from different layers. We then propose how to increase the capacity by improving the MAC protocol design. To fully explore the potential of UWB technologies which favor concurrent transmissions if the interference is appropriately controlled, we study the capacity of cellular-like UWB networks. Our findings, which should provide important guidelines for UWB network planning, are a) the inter-cell interference of UWB networks is closely related to the Riemann Zeta function, and to guarantee the bounded inter-cell interference of UWB networks, the path loss exponent α must be larger than 2; b) the total throughput in an area is a concave function of the cell size; c) the best distance between adjacent cells is a function of path loss exponent, background noise level, and cross-correlation of the target signal and the interfering signal; and d) with the optimal cell size, a single flow's throughput is reduced by 2/α due to inter-cell interference. Simulation results are given to demonstrate the accuracy of the analysis.