DocumentCode :
3050267
Title :
HCEM: A new class of bit-level hybrid channel error model
Author :
Jia Lu ; Gang Han ; Jimhui Wang ; Baoliang Li ; Wenhua Dou
Author_Institution :
Sch. of Comput., Nat. Univ. of Defense Technol., Changsha, China
fYear :
2012
fDate :
21-23 Sept. 2012
Firstpage :
8
Lastpage :
12
Abstract :
In this paper we present a bit-level hybrid channel error model (HCEM) to represent multipath fading wireless channels. Our model divides the received error marking sequences into blocks of different lengths. Within each block, bit errors occur according to the independent model with mean bit error rate e. We define p to be a threshold bit error rate and if the bit error rate of a block is not greater than p, we associate it with a benign block and vice versa. For any block being of length n, we compute the probability PG it is a benign block and the probability PB it is a malign block. Between blocks, we define a new class of two-state Markov channel model. It adopts a benign block state G and a malign block state B. We take PG and PB as approximate values of the steady-state probability of being a benign block state and a malign block state respectively. For an error marking sequence, we show basic principles of choosing suited model parameters: (n, p, e) in theory. We set up an office wireless environment and show how to choose optimum model parameters: (n, p, e) based on data.
Keywords :
Markov processes; error statistics; fading channels; multipath channels; probability; HCEM; benign block state; bit-level hybrid channel error model; malign block state; mean bit error rate; multipath fading wireless channels; office wireless environment; received error marking sequences; steady-state probability; threshold bit error rate; two-state Markov channel model; Bit error rate; Channel models; Computational modeling; Fading; Hidden Markov models; Markov processes; Steady-state; Benign blocks; Malign blocks; Markov channel model; Steady-state probability; Threshold bit error rate;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Network Infrastructure and Digital Content (IC-NIDC), 2012 3rd IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-2201-0
Type :
conf
DOI :
10.1109/ICNIDC.2012.6418701
Filename :
6418701
Link To Document :
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