Title :
Performance analysis: DF cognitive network with transceiver imperfections
Author :
Dang Khoa Nguyen ; Tu Thanh Lam ; Ochi, Hiroshi
Author_Institution :
Kyushu Inst. of Technol., Kitakyushu, Japan
Abstract :
In this paper, we comprehensively analyze the outage performance of dual-hop decode-and-forward (DF) cognitive network subject to independent non-identical distributed Rayleigh fading with the presence of hardware impairment level in the model of transceiver nodes of DF network. Closed-form expressions of exact and asymptotic of outage probability of the DF cognitive network are derived. A numerical simulation study is showed to corroborate our analysis results. Thereby, we found that hardware impairment level sharply impact outage performance of DF cognitive network. The influence of this factor is small at the low transmit power but the bad effect is higher when transmission power is increased. Using the practical range of hardware impairment specified in 3GPP LTE [1], outage probability of the system is raised by 30% corresponding the increasing of hardware impairment level from 0.08 to 0.175.
Keywords :
Long Term Evolution; Rayleigh channels; cognitive radio; decode and forward communication; numerical analysis; radio receivers; telecommunication network reliability; 3GPP LTE; DF cognitive network; Long Term Evolution; closed-form expressions; distributed Rayleigh fading; dual hop decode and forward cognitive network; hardware impairment level; node model; numerical simulation; outage probability performance analysis; transceiver imperfections; transmission power; Hardware; IP networks; Interference; Relay networks (telecommunications); Signal to noise ratio; Transceivers; Decode-and-Forward (DF); cognitive relay network (CRN); spectrum sharing;
Conference_Titel :
Signals, Systems and Computers, 2014 48th Asilomar Conference on
Print_ISBN :
978-1-4799-8295-0
DOI :
10.1109/ACSSC.2014.7094736
