Differentially-Keyed IR-UWB Signals for MA with Differential-Detection Receiver


Noncoherent communication receivers (differential-detectors) have simple design, however, they always incur bit error rate (BER) performance loss up to 3dB compared to coherent receivers. In this paper, a differential-detector is proposed for impulse radio ultra wideband (IR-UWB) communication systems. The system employs bit-level differential phase shift keying (DPSK) combined with code division (CD) for IR-UWB signals to support multiple-access (MA). It is analyzed under additive white Gaussian noise (AWGN) corrupted by multiple-access interference (MAI) channel. Its BER performance is compared against a reference coherent receiver using Monte-Carlo simulation method. A closed form expression for its average probability of error is derived analytically. Simulation results and theoretical analysis confirm the applicability of the proposed differential-detector for IR-UWB communication systems.

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Mahmoud, W. (2014) Differentially-Keyed IR-UWB Signals for MA with Differential-Detection Receiver. Journal of Computer and Communications, 2, 32-42. doi: 10.4236/jcc.2014.28004.

Conflicts of Interest

The authors declare no conflicts of interest.


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