Signals & systems (2nd ed.)
Fundamentals of Convolutional Coding
Fundamentals of Convolutional Coding
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Probability Distributions Involving Gaussian Random Variables: A Handbook for Engineers, Scientists and Mathematicians
AWGN performance of superorthogonal convolutional codes
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
BER sensitivity to mistiming in ultra-wideband impulse Radios-part I: nonrandom channels
IEEE Transactions on Signal Processing
Performance evaluation of impulse radio UWB systems with pulse-based polarity randomization
IEEE Transactions on Signal Processing
IEEE Transactions on Wireless Communications
Low Complexity Rake Receivers in Ultra-Wideband Channels
IEEE Transactions on Wireless Communications
Energy-Detection UWB Receivers with Multiple Energy Measurements
IEEE Transactions on Wireless Communications
Bit-interleaved coded modulation
IEEE Transactions on Information Theory
Channel estimation for ultra-wideband communications
IEEE Journal on Selected Areas in Communications
Performance of ultra-wideband communications with suboptimal receivers in multipath channels
IEEE Journal on Selected Areas in Communications
Bit error probability analysis of UWB communications with a relay node
IEEE Transactions on Wireless Communications
Time delay characteristic of industrial wireless networks based on IEEE 802.15.4a
International Journal of Automation and Computing
Some M-ary Sequence Designs for Pulse-Based UWB and Other Systems Based on PPM
Wireless Personal Communications: An International Journal
Performance analysis of a BPSK-BPPM UWB physical layer for wireless body area networks
Proceedings of the Fifth International Conference on Body Area Networks
Throughput and delay limits of chirp spread spectrum-based IEEE 802.15.4a
International Journal of Communication Systems
Wireless Personal Communications: An International Journal
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The recently approved IEEE 802.15.4a standard defines an ultra-wideband (UWB) based physical layer using concatenated coding with mixed binary phase-shift keying and binary pulse-position modulation (BPSK-BPPM) and direct-sequence spreading with time hopping. The concatenated code consists of an outer Reed-Solomon (RS) and an inner convolutional code, and the coding and modulation are combined such that both coherent and noncoherent receiver architectures are supported. In this paper, the error-rate performance of IEEE 802.15.4a compliant UWB radios is investigated. To this end, semi-analytical expressions for the bit-error rate (BER) and frame-error rate (FER) of the coded UWB system are derived. The presented framework is comprehensive in that (i) different methods for generating reliability information (i.e., decoding metrics), (ii) the effects of suboptimal multipath combining, and (iii) coherent and noncoherent reception methods are included. Furthermore, a particularly suited errors-and-erasures RS decoding scheme is devised. The evaluation of the error-rate expressions together with simulation results for realistic UWB channels show that (i) the error-rate approximations are tight over wide ranges of BER and FER, (ii) symbol-wise metrics are clearly advantageous over bit-wise metrics for decoding of the convolutional code, (iii) combining the 5 to 10 strongest multipath components approaches the performance of full combining within 1-2 dB for residential and 3-5 dB for outdoor UWB environments, and (iv) the simplicity of noncoherent detection comes at loss of more than 10 dB in signal-to-noise ratio compared to coherent detection.