DocumentCode :
51831
Title :
Energy, Delay, and Outage Analysis of a Buffer-Aided Three-Node Network Relying on Opportunistic Routing
Author :
Chen Dong ; Lie-Liang Yang ; Jing Zuo ; Soon Xin Ng ; Hanzo, Lajos
Author_Institution :
Sch. of ECS, Univ. of Southampton, Southampton, UK
Volume :
63
Issue :
3
fYear :
2015
fDate :
Mar-15
Firstpage :
667
Lastpage :
682
Abstract :
In this contribution, we propose and study a bufferaided opportunistic routing (BOR) scheme, which combines the benefits of both opportunistic routing and multihop diversity (MHD) aided transmissions. It was conceived for a buffer-aided three-node network (B3NN) composed of a source node (SN), a buffer-aided relay node (RN) and a destination node (DN). In this network, there are three channels namely the SN-RN, RN-DN and SN-DN channels. The key motivation is that we are aiming for activating the specific channels requiring a recuded energy dissipation. In order to study this problem, a three-dimensional (3D) transmission activation probability space (TAPS) is proposed, which is divided into four regions representing each of the three channels plus an outage region. In a specific time slot (TS), the instantaneous channel fading values may be directly mapped to a specific point in this 3D channel space. The BOR scheme then relies on the position of this point to select the most appropriate channel for its transmission. Both the energy dissipation and the outage probability (OP) are investigated for transmission in this network. The results show that when the system is operated at a normalized throughput of 0.4 packet/TS, the energy dissipation was reduced by 24.8% to 77.6% compared to three different benchmark schemes. Alternatively, our technique is capable of reducing the OP by 89.6% when compared to conventional opportunistic routing. As in all buffer-aided system, the performance improved with the cost of higher packet delay, which is also studied.
Keywords :
cooperative communication; energy consumption; probability; telecommunication network reliability; telecommunication network routing; buffer-aided relay node; buffer-aided three-node network; delay analysis; destination node; energy analysis; energy dissipation; instantaneous channel fading values; multihop diversity aided transmissions; opportunistic routing; outage analysis; outage probability; source node; transmission activation probability space; Delays; Energy dissipation; Fading; Routing; Signal to noise ratio; Throughput; Tin; Cooperative communication; buffer; channel space; energy consumption; energy dissipation; opportunistic routing;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOMM.2015.2396512
Filename :
7031378
Link To Document :
بازگشت