Frequency Domain Detectors in Different Short-Range Ultra-Wideband Communication Scenarios
© T. Bianchi and S. Morosi 2006
Received: 2 September 2005
Accepted: 3 November 2006
Published: 19 December 2006
We study the performance of an innovative communication scheme for ultra-wideband systems which are based on impulse radio in two different short-range communication scenarios: the proposed system relies on both the introduction of the cyclic prefix at the transmitter and the use of a frequency domain detector at the receiver. Two different detection strategies based either on the zero forcing (ZF) or on the minimum mean square error (MMSE) criteria have been investigated and compared with the classical RAKE, considering two scenarios where a base station transmits with a different data rate to several mobile terminals in an indoor environment characterized by severe multipath propagation. The results show that the MMSE receiver achieves a remarkable performance, especially in the case of highly loaded high data-rate systems. Hence, the proposed approach is well suited for high-throughput applications in indoor wireless environments where multipath propagation tends to increase the effects of the interference.
- Win MZ, Scholtz RA: Impulse radio: how it works. IEEE Communications Letters 1998,2(2):36–38. 10.1109/4234.660796View ArticleGoogle Scholar
- Brown T, Schwieger K, Zimmermann E, et al.: Ultra wideband: technology and future perspectives. Proceedings of the 13th Wireless World Research Forum (WWRF '05), March 2005, Jeju Island, Korea white paper
- Porcino D, Hirt W: Ultra-wideband radio technology: potential and challenges ahead. IEEE Communications Magazine 2003,41(7):66–74. 10.1109/MCOM.2003.1215641View ArticleGoogle Scholar
- Win MZ, Scholtz RA: Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communications. IEEE Transactions on Communications 2000,48(4):679–691. 10.1109/26.843135View ArticleGoogle Scholar
- Scholtz RA: Multiple access with time-hopping impulse modulation. Proceedings of IEEE Military Communications Conference (MILCOM '93), October 1993, Boston, Mass, USA 2: 447–450.
- Choi JD, Stark WE: Performance of ultra-wideband communications with suboptimal receivers in multipath channels. IEEE Journal on Selected Areas in Communications 2002,20(9):1754–1766. 10.1109/JSAC.2002.805623View ArticleGoogle Scholar
- Qureshi SUH: Adaptive equalization. Proceedings of the IEEE 1985,73(9):1349–1387.View ArticleGoogle Scholar
- Falconer D, Ariyavisitakul SL, Benyamin-Seeyar A, Eidson B: Frequency domain equalization for single-carrier broadband wireless systems. IEEE Communications Magazine 2002,40(4):58–66. 10.1109/35.995852View ArticleGoogle Scholar
- Cassioli D, Win MZ, Molisch AF: The ultra-wide bandwidth indoor channel: from statistical model to simulations. IEEE Journal on Selected Areas in Communications 2002,20(6):1247–1257. 10.1109/JSAC.2002.801228View ArticleGoogle Scholar
- Molisch AF, Li YG, Nakache Y-P, et al.: A low-cost time-hopping impulse radio system for high data rate transmission. EURASIP Journal on Applied Signal Processing 2005,2005(3):397–412. 10.1155/ASP.2005.397View ArticleMATHGoogle Scholar
- Namgoong W: A channelized digital ultrawideband receiver. IEEE Transactions on Wireless Communications 2003,2(3):502–510. 10.1109/TWC.2003.811177View ArticleGoogle Scholar
- Harjani R, Harvey J, Sainati R: Analog/RF physical layer issues for UWB systems. Proceedings of the 17th IEEE International Conference on VLSI Design (VLSID '04), January 2004, Mumbai, India 17: 941–948.
- Le Martret CJ, Giannakis GB: All-digital impulse radio with multiuser detection for wireless cellular systems. IEEE Transactions on Communications 2002,50(9):1440–1450. 10.1109/TCOMM.2002.802559View ArticleGoogle Scholar
- Gezici S, Kobayashi H, Poor HV, Molisch AF: Performance evaluation of impulse radio UWB systems with pulse-based polarity randomization. IEEE Transactions on Signal Processing 2005,53(7):2537–2549.MathSciNetView ArticleGoogle Scholar
- Win MZ, Scholtz RA: On the robustness of ultra-wide bandwidth signals in dense multipath environments. IEEE Communications Letters 1998,2(2):51–53. 10.1109/4234.660801View ArticleGoogle Scholar
- Yang L, Giannakis GB: Ultra-wideband communications: an idea whose time has come. IEEE Signal Processing Magazine 2004,21(6):26–54. 10.1109/MSP.2004.1359140View ArticleGoogle Scholar
This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.