Capacity optimization of ultra-wide band system under the coexistence with IEEE 802.11n

Author

Li, Zhuo ; Liang, Qilian ; Wang, Wei ; Zhang, Baoju

Author_Institution

Dept. of Electr. Eng., Univ. of Texas at Arlington, Arlington, TX, USA

fYear

2011

fDate

12-14 Oct. 2011

Firstpage

553

Lastpage

557

Abstract

Considering the potential interference of ultra-wide hand (UWB) system to OFDM based narrowband wireless communication system, such as IEEF. 802.1 In system, this paper investigates the optimal power allocation scheme for Impulse Radio UWB (IR-IIWB) user in order to maximize the total transmission rate of UWB with the constraints that its interference to IEEE 802.11n user is below a certain threshold. Therefore, UWB user could reach its best performance regarding to transmission rate, while the coexisting IEEE 802.11n user tends to work normally with permissible interference from UWB user. Simulation results show that the optimal power allocation scheme significantly increases the capacity of UWB user compared with equal power allocation scheme.

Keywords

OFDM modulation; optimisation; radiofrequency interference; ultra wideband communication; IEEE 802.11n system; OFDM based narrowband wireless communication system; UWB system; capacity optimization; impulse radio UWB; optimal power allocation; permissible interference; ultra-wide band system; ultrawideband radio; Bandwidth; Equations; Frequency domain analysis; Interference; OFDM; Receivers; Resource management; IEEE 802.11n; power allocation; smart grid; spectrum management; ultra-wide band (UWB); water-filling;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies (ISCIT), 2011 11th International Symposium on

Conference_Location

Hangzhou

Print_ISBN

978-1-4577-1294-4

Type

conf

DOI

10.1109/ISCIT.2011.6092181

Filename

6092181