Single-carrier modulation with frequency domain processing techniques for ultra wideband channels

In this paper, single-carrier (SC) modulation with frequency domain equalization (FDE) is comprehensively investigated. Maximum achievable information rates of SC systems over ultra wideband (UWB) dense multi-path channels unveil that residual inter-symbol interference (ISI) of FDE results in significant capacity loss. Therefore, we mainly focus on low complexity processing techniques of FDE to reduce residual ISI caused by spectral nulls. For cases of high spectrum efficiency, a time-frequency interleaved (TFI) structure of FDE to achieve high diversity by combining uncorrelated spectral components is proposed. For cases of low spectrum efficiency, a combination of FDE and M-ary bi-orthogonal keying (MBOK) is proposed to eliminate the residual ISI and further improve power efficiency under the measure of Eb/N0.

[1]  Tomoaki Ohtsuki,et al.  Frequency domain channel estimation and equalisation for direct sequence ultra wideband (DS-UWB) system , 2006 .

[2]  Paul H. Siegel,et al.  On the achievable information rates of finite state ISI channels , 2001, GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270).

[3]  Shidong Zhou,et al.  Capacity of single carrier systems with frequency-domain equalization , 2004, Proceedings of the IEEE 6th Circuits and Systems Symposium on Emerging Technologies: Frontiers of Mobile and Wireless Communication (IEEE Cat. No.04EX710).

[4]  Andreas F. Molisch,et al.  Channel estimation and signal detection for UWB , 2003 .

[5]  R. Kalbasi,et al.  Single-carrier frequency domain equalization , 2008, IEEE Signal Processing Magazine.

[6]  Rui Dinis,et al.  On frequency-domain equalization and diversity combining for broadband wireless communications , 2003, IEEE Trans. Commun..

[7]  Sergio Verdú,et al.  Spectral efficiency in the wideband regime , 2002, IEEE Trans. Inf. Theory.

[8]  Nevio Benvenuto,et al.  Single Carrier Modulation With Nonlinear Frequency Domain Equalization: An Idea Whose Time Has Come—Again , 2010, Proceedings of the IEEE.

[9]  D.J. Goodman,et al.  Single carrier FDMA for uplink wireless transmission , 2006, IEEE Vehicular Technology Magazine.

[10]  Naofal Al-Dhahir,et al.  Time-and frequency-domain equalization for quasi-orthogonal STBC over frequency-selective channels , 2004, 2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577).