title: Received response based heuristic LDPC code for short-range non-line-of-sight ultraviolet communication.
abstract: Through slight modification on typical photon multiplier tube (PMT) receiver output statistics, a generalized received response model considering both scattered propagation and random detection is presented to investigate the impact of inter-symbol interference (ISI) on link data rate of short-range non-line-of-sight (NLOS) ultraviolet communication. Good agreement with the experimental results by numerical simulation is shown. Based on the received response characteristics, a heuristic check matrix construction algorithm of low-density-parity-check (LDPC) code is further proposed to approach the data rate bound derived in a delayed sampling (DS) binary pulse position modulation (PPM) system. Compared to conventional LDPC coding methods, better bit error ratio (BER) below 1E-05 is achieved for short-range NLOS UVC systems operating at data rate of 2Mbps.
authors.forename: Heng
authors.initials: H
authors.lastname: Qin
authors.forename: Yong
authors.initials: Y
authors.lastname: Zuo
authors.forename: Dong
authors.initials: D
authors.lastname: Zhang
authors.forename: Yinghui
authors.initials: Y
authors.lastname: Li
authors.forename: Jian
authors.initials: J
authors.lastname: Wu