DocumentCode :
2713012
Title :
Frequency-reuse planning of the down-link of distributed antenna systems with maximum-ratio-combining (MRC) receivers
Author :
Castañeda-Trujillo, Eduardo ; Samano-Robles, Ramiro ; Gameiro, Atílio
Author_Institution :
Inst. de Telecomun., Aveiro, Portugal
fYear :
2011
fDate :
24-26 Oct. 2011
Firstpage :
1
Lastpage :
6
Abstract :
Distributed antenna systems (DAS) have been shown to considerably outperform conventional cellular systems in terms of capacity improvement and interference resilience. However, the influence of frequency reuse planning on the performance of DAS remains relatively unknown. To partially fill this gap, this paper presents a comparative analysis of the down-link of DAS versus conventional cellular systems using different values of frequency reuse factor. The analysis assumes Rayleigh fading channels and it also considers maximum-ratio-combining (MRC) receivers at the user terminals to exploit diversity both in the transmission and reception links. Numerical evaluation of the analytical expressions shows that, in general, for most of the cases DAS can achieve better performance figures than conventional cellular systems using considerably smaller values of frequency reuse factor. Conversely, DAS can significantly improve the throughput (2×-3×) and power consumption (6-10 dB) of conventional systems when using the same frequency reuse factor. An interesting result shows that in some particular cases DAS outperform conventional cellular systems no matter the frequency reuse factor used by the latter one, which indicates an effective capacity gain provided by the combined operation of DAS and MRC receivers.
Keywords :
Rayleigh channels; cellular radio; channel capacity; diversity reception; frequency allocation; mobile antennas; radiofrequency interference; telecommunication network planning; MRC receiver; Rayleigh fading channels; cellular systems; channel capacity gain; distributed antenna systems; frequency reuse factor; frequency-reuse planning; interference resilience; maximum-ratio-combining receivers; power consumption; Computer architecture; Interference; Receiving antennas; Signal to noise ratio; Throughput; Distributed antenna systems; MRC receivers; frequency reuse factor; interference resilience;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications (LATINCOM), 2011 IEEE Latin-American Conference on
Conference_Location :
Belem do Para
Print_ISBN :
978-1-4673-0277-7
Type :
conf
DOI :
10.1109/LatinCOM.2011.6107417
Filename :
6107417
Link To Document :
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