Open AccessRate bounds for multicell cellular networks with coordinated beamforming
Author(s) -
Yu Jian,
Yin Changchuan
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2015.1095
Subject(s) - beamforming , telecommunications link , interference (communication) , transmitter power output , power (physics) , upper and lower bounds , cellular network , constant (computer programming) , topology (electrical circuits) , expression (computer science) , computer science , mathematics , signal (programming language) , outage probability , control theory (sociology) , mathematical optimization , statistics , transmitter , telecommunications , mathematical analysis , physics , combinatorics , fading , decoding methods , channel (broadcasting) , control (management) , quantum mechanics , artificial intelligence , programming language
The mean achievable rate of downlink in multicell networks, where coordinated beamforming is applied to mitigate inter‐cell interference, is investigated. The upper and lower bounds for the mean achievable rate are derived by using Gamma distribution to characterise the probability distributions of the signal and interference power. A closed‐form expression for the mean achievable rate is proposed to approximate the theoretical value. Analysis and simulation results show that the bounds are tight and the approximation is effective. The mean achievable rate increases with the number of transmit antennas while it first increases with the transmit power and then keeps a constant.