Performance of Hybrid Direct-Sequence Time-Hopping Ultrawide Bandwidth Systems in Nakagami-M Fading Channels
作者： Qasim Zeeshan Ahmed , Lie-Liang Yang
DOI: 10.1109/PIMRC.2007.4394238
关键词:
摘要: This paper investigates and compares the performance of various ultrawide bandwidth (UWB) systems when communicating over Nakagami-m fading channels. Specifically, direct-sequence (DS), time-hopping (TH) hybrid (DS-TH) UWB are considered. The these is studied, using conventional single-user correlation detector or minimum mean-square error (MMSE) multiuser detector. Our simulation results show that DS-TH system may outperform a corresponding pure TH-UWB DS-UWB in terms achievable performance. Given total spreading gain system, there an optimal setting TH factor DS factor, which best
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sci-hub.se 参考文章(11)
S. Moshavi, Multi-user detection for DS-CDMA communications IEEE Communications Magazine. ,vol. 34, pp. 124- 136 ,(1996) , 10.1109/35.544334
H. Sato, T. Ohtsuki, Frequency domain channel estimation and equalisation for direct sequence ultra wideband (DS-UWB) system IEE Proceedings - Communications. ,vol. 153, pp. 93- 98 ,(2006) , 10.1049/IP-COM:20050328
J.A. Gutierrez, M. Naeve, E. Callaway, M. Bourgeois, V. Mitter, B. Heile, IEEE 802.15.4: a developing standard for low-power low-cost wireless personal area networks IEEE Network. ,vol. 15, pp. 12- 19 ,(2001) , 10.1109/65.953229
J.R. Foerster, The performance of a direct-sequence spread ultrawideband system in the presence of multipath, narrowband interference, and multiuser interference ieee conference on ultra wideband systems and technologies. pp. 87- 91 ,(2002) , 10.1109/UWBST.2002.1006325
E. Fishler, H.V. Poor, Low-complexity multiuser detectors for time-hopping impulse-radio systems IEEE Transactions on Signal Processing. ,vol. 52, pp. 2561- 2571 ,(2004) , 10.1109/TSP.2004.832017
Matti Hamalainen, Veikko Hovinen, Raffaello Tesi, Jari HJ Iinatti, Matti Latva-aho, On the UWB system coexistence with GSM900, UMTS/WCDMA, and GPS IEEE Journal on Selected Areas in Communications. ,vol. 20, pp. 1712- 1721 ,(2002) , 10.1109/JSAC.2002.805242
A.F. Molisch, Ultrawideband propagation channels-theory, measurement, and modeling IEEE Transactions on Vehicular Technology. ,vol. 54, pp. 1528- 1545 ,(2005) , 10.1109/TVT.2005.856194
Lie-Liang Yang, L. Hanzo, Performance of generalized multicarrier DS-CDMA over Nakagami-m fading channels IEEE Transactions on Communications. ,vol. 50, pp. 956- 966 ,(2002) , 10.1109/TCOMM.2002.1010615
R. Scholtz, Multiple access with time-hopping impulse modulation military communications conference. ,vol. 2, pp. 447- 450 ,(1993) , 10.1109/MILCOM.1993.408628
Jian Zhang, Thushara D Abhayapala, Rodney A Kennedy, None, Role of pulses in ultra wideband systems international conference on ultra-wideband. pp. 565- 570 ,(2005) , 10.1109/ICU.2005.1570050