M-ary orthogonal coded/balanced ultra-wideband transmitted-reference systems in multipath

A new M-ary orthogonal coded signaling is introduced to avoid the inter-frame interference that is especially detrimental to realizing high rate ultra-wideband (UWB) transmitted-reference (TR) systems. To further increase the information rate, the inter-pulse interference by an overlap of multipath-delayed pulses is controlled by integrating the signaling and a pair of balanced matched Alters in a joint manner, so as to permit a shorter time delay between the reference and data pulses in TR systems. To evaluate an achievable information rate increase relative to conventional TR, the symbol error probability (SEP) is theoretically derived for the proposed M-ary orthogonal coded/balanced TR system, considering the realistic IEEE standard UWB channel models. In addition, we consider the issue of receiver complexity and present two alternative low- complexity receiver implementations for the proposed TR system.

[1]  Moe Z. Win,et al.  On the energy capture of ultrawide bandwidth signals in dense multipath environments , 1998, IEEE Communications Letters.

[2]  Craig K. Rushforth.  Transmitted-reference techniques for random or unknown channels , 1964, IEEE Trans. Inf. Theory.

[3]  Andreas F. Molisch,et al.  Channel models for ultrawideband personal area networks , 2003, IEEE Wireless Communications.

[4]  I. M. Jacobs,et al.  Principles of Communication Engineering , 1965 .

[5]  J. Hancock,et al.  A Transmitted Reference System for Communication in Random of Unknown Channels , 1965 .

[6]  Andreas F. Molisch,et al.  Ultrawideband propagation channels-theory, measurement, and modeling , 2005, IEEE Transactions on Vehicular Technology.

[7]  Emanuel Parzen,et al.  Stochastic Processes , 1962 .

[8]  Liuqing Yang,et al.  Optimal pilot waveform assisted modulation for ultrawideband communications , 2004, IEEE Transactions on Wireless Communications.

[9]  Brian M. Sadler,et al.  Data detection for UWB transmitted reference systems with inter-pulse interference , 2005, Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005..

[10]  Lin Wu,et al.  Asymptotically optimal UWB receivers with noisy templates: design and comparison with RAKE , 2006, IEEE Journal on Selected Areas in Communications.

[11]  J. Keith Townsend,et al.  The effects of timing jitter and tracking on the performance of impulse radio , 2002, IEEE J. Sel. Areas Commun..

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

[13]  Moe Z. Win,et al.  Performance of low-complexity RAKE reception in a realistic UWB channel , 2002, 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333).

[14]  Robert A. Scholtz,et al.  Optimal and suboptimal receivers for ultra-wideband transmitted reference systems , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[15]  R. Hoctor,et al.  Delay-hopped transmitted-reference RF communications , 2002, 2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580).

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

[17]  Fredrik Tufvesson,et al.  On the performance of transmitted-reference impulse radio , 2004, IEEE Global Telecommunications Conference, 2004. GLOBECOM '04..

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

[19]  Xiaodai Dong,et al.  A new UWB dual pulse transmission and detection technique , 2005, IEEE International Conference on Communications, 2005. ICC 2005. 2005.

[20]  Moe Z. Win,et al.  Analysis of UWB transmitted-reference communication systems in dense multipath channels , 2005, IEEE Journal on Selected Areas in Communications.