NDLI: Uplink Capacity Enhancement In Two-Hop Cellular Networks With Limited Mobile Relays

Content Provider	IEEE Xplore Digital Library
Author	Jingyuan Sun
Copyright Year	2007
Description	Author affiliation: Beijing Univ. of Posts & Telecommun., Beijing (Jingyuan Sun)
Abstract	This paper studies system uplink capacity in multi-hop cellular networks with mobile nodes as relays. And according to simulation and analysis results, author provides an enhanced architecture in CDMA Two-Hop Cellular Networks (THCN) with relay capability limitation. We analyze the real relay capability request in the general layered multi-hop cellular networks, which provide relay capability is an indispensable factor when set up a multi-hop cellular system. Simulations show that mobile and fixed relay capability limitation will decide the enhancement of system uplink capacity. We provide the maximum system uplink capacity in a CDMA THCN cell. And then compare the different scenarios with lack of relay capability in uplink, we get single-hop mobile user percentage should be 10-40% if there is no or less fixed relay nodes. Considering detects of the general architecture, we propose a new enhanced architecture, which is more effective with relay capability limitation. Simulation results show that it will enhance the system uplink capacity by about 21.4%, while about 17% with relay limitation. Simulation also shows that when enlarging single-hop user area, the total system capacity will be kept and the sending power in uplink will be saved.
Starting Page	134
Ending Page	138
File Size	949539
Page Count	5
File Format	PDF
ISBN	1424410991
DOI	10.1109/LANMAN.2007.4295988
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Land mobile radio cellular systems Relays Power system relaying Spread spectrum communication Analytical models Multiaccess communication Cellular networks System performance Sun Wireless networks uplink capacity THCN relay capability
Content Type	Text
Resource Type	Article

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