DocumentCode :
266849
Title :
Downlink and uplink splitting user association in two-tier heterogeneous cellular networks
Author :
Zebing Feng ; Zhiyong Feng ; Wei Li ; Wenping Chen
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing, China
fYear :
2014
fDate :
8-12 Dec. 2014
Firstpage :
4659
Lastpage :
4664
Abstract :
Traditional cellular network standards require users downlink(DL) and uplink(UL) associated to the same BS. However, due to the power gap between BSs and users and different transmission environment(e.g. the path gain) of DL and UL, a serving BS with the strongest downlink would yield to a non-serving BS in the uplink. In this paper we propose the DL/UL splitting user association framework under a two-tier heterogeneous network, in which femtocell base stations are randomly located over a macro base station in a specific area. Downlink and Uplink network ergodic throughput are analysed according to our DL/UL splitting association model. Simulation results show a great throughput promotion compared with the traditional DL/UL coupled association manner. We believe downlink and uplink splitting as a flexible connection mode between users and base stations would be an essential approach to realize the high capacity requirements, which is a evolution of the network connection art.
Keywords :
femtocellular radio; sensor placement; downlink network ergodic throughput; downlink-uplink splitting user association; femtocell base stations; flexible connection mode; macro base station; network connection evolution; two tier heterogeneous cellular network standard; uplink network ergodic throughput; Base stations; Downlink; Interference; Signal to noise ratio; Throughput; Uplink; Wireless communication; Downlink and uplink splitting; two-tier heterogeneous network; user association;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Communications Conference (GLOBECOM), 2014 IEEE
Conference_Location :
Austin, TX
Type :
conf
DOI :
10.1109/GLOCOM.2014.7037543
Filename :
7037543
Link To Document :
بازگشت