|Energy and Spectral Efficiency of Cellular Networks with Discontinuous Transmission|
|SAI RAMAKRISHNA, M. SRAVANTHI|
|Cite This Article:|
Energy and Spectral Efficiency of Cellular Networks with Discontinuous Transmission, International Journal of Innovative Research in Technology(www.ijirt.org) ,ISSN: 2349-6002 ,Volume 6 ,Issue 6 ,Page(s):191-195 ,November 2019 ,Available :IJIRT148815_PAPER.pdf
|Cell discontinuous transmission (DTX) has been proposed as a solution to reduce energy consumption of cellular networks. This paper investigates the impact of network traffic load on spectral and energy efficiency of cellular networks with DTX. The SINR distribution as a function of traffic load is derived firstly. Then sufficient condition for ignoring thermal noise and simplifying the SINR distribution is investigated. Based on the simplified SINR distribution, the network spectral and energy efficiency as functions of network traffic load are derived. It is shown that the network spectral efficiency increases monotonically in traffic load, while the optimal network energy efficiency depends on the ratio of the sleep-mode power consumption to the active-mode power consumption of base stations. If the ratio is larger than a certain threshold, the network energy efficiency increases monotonically with network traffic load and is maximized when the network is fully loaded. Otherwise, the network energy efficiency firstly increases and then decreases in network traffic load. The optimal load can be identified with a binary search algorithm.|
|Unique Paper ID: 148815|
Publication Volume & Issue: Volume 6, Issue 6
Page(s): 191 - 195
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