How to efficiently detect different data-rate communications in multiuser short-range impulse radio UWB systems

Low and high data-rate applications can be foreseen for future ultra-wideband systems which are based on impulse radio and proper detection schemes have to be designed for the most general scenarios. In this paper, an innovative frequency domain detection strategy is tested in two different indoor short-range communication scenarios where several mobile terminals transmit low or high data-rate flows to a base station. Both Zero Forcing (ZF) and Minimum Mean Square Error (MMSE) criteria have been investigated and compared with the classical RAKE. The results show that the proposed approach is well suited for the considered scenarios.

[1]  Sergio Verdu,et al.  Multiuser Detection , 1998 .

[2]  Wayne E. Stark,et al.  Performance of ultra-wideband communications with suboptimal receivers in multipath channels , 2002, IEEE J. Sel. Areas Commun..

[3]  Georgios B. Giannakis,et al.  All-digital impulse radio with multiuser detection for wireless cellular systems , 2002, IEEE Trans. Commun..

[4]  S. Qureshi,et al.  Adaptive equalization , 1982, Proceedings of the IEEE.

[5]  Moe Z. Win,et al.  On the robustness of ultra-wide bandwidth signals in dense multipath environments , 1998, IEEE Communications Letters.

[6]  Won Namgoong,et al.  A channelized digital ultrawideband receiver , 2003, IEEE Trans. Wirel. Commun..

[7]  Ramesh Harjani,et al.  Analog/RF physical layer issues for UWB systems , 2004, 17th International Conference on VLSI Design. Proceedings..

[8]  Moe Z. Win,et al.  Impulse radio: how it works , 1998, IEEE Communications Letters.

[9]  Moe Z. Win,et al.  Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communications , 2000, IEEE Trans. Commun..

[10]  Moe Z. Win,et al.  The ultra-wide bandwidth indoor channel: from statistical model to simulations , 2002, IEEE J. Sel. Areas Commun..

[11]  David Falconer,et al.  Frequency domain equalization for single-carrier broadband wireless systems , 2002, IEEE Commun. Mag..

[12]  Walter Hirt,et al.  Composite Reconfigurable Wireless Networks: the Eu R&d Path towards 4g , 2022 .

[13]  Robert A. Scholtz,et al.  Multiple access with time-hopping impulse modulation , 1993, Proceedings of MILCOM '93 - IEEE Military Communications Conference.

[14]  John G. Proakis,et al.  Digital Communications , 1983 .