Title :
On the Approximation of Coverage Probability in Broadcast Single-Frequency Networks
Author :
Awada, Ahmad ; Kuru, Lauri
Author_Institution :
Nokia, Munich, Germany
Abstract :
Coverage probability is a key performance indicator for both broadcast and cellular networks, but it is calculated and thus defined in different ways between the two. In this paper, the two definitions are compared and the assumptions for which they are equal are derived. Then the conventional broadcast methodology for calculating the coverage probability is improved by replacing the assumption of uncorrelated shadowing with the assumption of inter-site shadowing correlation and by adding new correction terms to the output of the t-LNM V2 method which is used for approximating the coverage probability. Finally, the impacts of these improvements are simulated using an LTE network as an example, and verified against a Monte-Carlo-simulation. Results have shown that the proposed modifications have accurately accounted for inter-site shadowing correlation and yielded smaller approximation error. Moreover, higher coverage probability is achieved if inter-site shadowing correlation is considered.
Keywords :
Long Term Evolution; Monte Carlo methods; approximation theory; broadcast communication; cellular radio; correlation theory; probability; LTE network; Long Term Evolution; Monte-Carlo simulation; approximation error; broadcast single-frequency network; cellular network; coverage probability approximation; intersite shadowing correlation; t-LNM V2 method; uncorrelated shadowing; Approximation methods; Correlation; Interference; Monte Carlo methods; Receivers; Shadow mapping; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2015 IEEE 81st
Conference_Location :
Glasgow
DOI :
10.1109/VTCSpring.2015.7145963