Title
Performance comparison of coherent and non-coherent detection schemes in LR-UWB system.
Abstract
This paper presents new coherent and non-coherent detection methods for the IEEE 802.15.4a low-rate ultra-wideband physical layer with forward error correction (FEC) coding techniques. The coherent detection method involving channel estimation is based on the correlation characteristics of the preamble signal. A coherent receiver uses novel iterated selective-rake (IT-SRAKE) to detect 2-bit data in a non-line-of-sight channel. The non-coherent detection method that does not involve channel estimation employs a 2-bit data detection scheme using modified transmitted reference pulse cluster (M-TRPC) methods. To compare the two schemes, we have designed an IT-SRAKE receiver and a M-TRPC receiver using an IEEE 802.15.4a physical layer. Simulation results show the performance of IT-SRAKE is better than that of the M-TRPC by 3–9 dB.
Year
DOI
Venue
2012
10.1109/JCN.2012.00009
Journal of Communications and Networks
Keywords
Field
DocType
Channel estimation,RAKE receivers,Pulse width modulation,Coherence
Forward error correction,Preamble,Computer science,Pulse-width modulation,Communication channel,Coding (social sciences),Real-time computing,Coherence (physics),Physical layer,Iterated function
Journal
Volume
Issue
ISSN
14
5
1229-2370
Citations 
PageRank 
References 
0
0.34
7
Authors
3
Name
Order
Citations
PageRank
Soonkoo Kwon121.07
Sinae Ji241.11
Jaeseok Kim340558.33