Capacity of Differential Pulse-Position Modulation (DPPM) over Nakagami-m Fading Channels

Author

Wang, Xiao ; Zhang, Hao ; Gulliver, T. Aaron

Author_Institution

Dept. of Inf. Sci. & Eng., Ocean Univ. of China, Qingdao, China

fYear

2010

fDate

23-25 Sept. 2010

Firstpage

1

Lastpage

5

Abstract

The capacity of differential pulse-position modulation (DPPM) is considered in this paper. Since the formula of Shannon Capacity is effective only in the AWGN channel with continuous-valued inputs and outputs, while the channel employing M-ary DPPM modulation has discrete-valued inputs and continuous-valued outputs, we derive the modified formula which applies to calculate the capacity of a UWB system with DPPM over an AWGN channel. Then the result is extended to Nakagmi-m fading channels. Monte Carlo simulation is employed to analyze the relationship between the capacity and the signal to noise ratio (SNR), and the relationship between reliable communication distance and channel capacity subject to FCC Part 15 rules is also given. The results show that DPPM is superior to PPM in terms of data transfer rate and capacity performance.

Keywords

AWGN channels; Monte Carlo methods; Nakagami channels; channel capacity; pulse position modulation; ultra wideband communication; AWGN channel; FCC Part 15 rules; M-ary DPPM modulation; Monte Carlo simulation; Nakagami-m fading channel; Shannon capacity; UWB system; channel capacity; communication distance; differential pulse position modulation; AWGN channels; Bandwidth; Channel capacity; Fading; Modulation; Signal to noise ratio; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-3708-5

Electronic_ISBN

978-1-4244-3709-2

Type

conf

DOI

10.1109/WICOM.2010.5600989

Filename

5600989