Paper Info
Title
Performance of coarse relay site planning in composite fading/shadowing environments
Abstract
Relay deployments promise to alleviate the limitations of conventional macrocell networks, such as poor indoor penetration and coverage holes in a cost-efficient way. In this context, the capacity of the wireless relay link between a relay node (RN) and its serving base station (BS) has a crucial role in the achievable end-to-end performance. The deployment flexibility of RNs, which mainly stems from the wireless relay link, compact physical characteristics, and low-power consumption, can be exploited by relay site planning (RSP) to overcome the limitations of the relay link and, thus, enhance the system performance. To this end, RSP is carried out via selecting an RN deployment location from a discrete set of alternatives considering the signal-to-interference-plus-noise ratio (SINR) on the relay link as the selection criterion. In practice, the so-called coarse RSP takes into account only large-scale fading due to shadowing. Nevertheless, as RNs are stationary, the wireless channels pertaining to relay deployments are subject to simultaneous impairments by both shadowing and multi-path fading, i.e., composite fading/shadowing. In this paper, we present the performance of coarse RSP that can be used for planning and dimensioning of two-hop cellular relay networks in composite fading/shadowing environments, where co-channel interference is also present. The relay link is modeled by Nakagami-lognormal distribution while the access link between a mobile terminal (MT) and its serving RN is modeled by Rician-lognormal distribution. Furthermore, we provide an accurate analytical framework through closed-form expressions for relay link SINR, link rates, and end-to-end rate. Results show that coarse RSP can still yield high performance improvements considering composite fading/shadowing channels.
Year
DOI
Venue
2013
10.1109/PIMRC.2013.6666603
Personal Indoor and Mobile Radio Communications
Keywords
Field
DocType
log normal distribution
Base station,Relay channel,Wireless,Fading,Computer science,Computer network,Communication channel,Dimensioning,Relay,Macrocell
Conference
ISSN
Citations 
PageRank 
2166-9570
4
0.46
References 
Authors
7
3
Name
Order
Citations
PageRank
Bulakci, Omer1131.63
Jyri Hämäläinen21097.70
Egon Schulz310912.24