NDLI: Delay sensitivity analysis of CDMA downlink handoff algorithms

Content Provider	IEEE Xplore Digital Library
Author	Das, S. MacDonald, W.M. Harish Viswanthan
Copyright Year	2003
Description	Author affiliation: Wireless Technol. Res., Lucent Technol. Bell Labs, USA (Das, S.; MacDonald, W.M.; Harish Viswanthan)
Abstract	We analyze the performance of different handoff algorithms for the forward link of a CDMA cellular system. Unlike the reverse link, soft handoff on the forward link requires additional resources such as CDMA codes and transmit power and also causes additional interference. If handoff requests can be processed instantaneously, transmission from the base station with the best link to the user would achieve a significant fraction of the macro-diversity gain without utilizing additional resources. However, in practical systems there is a non zero execution delay and soft-handoff provides the required robustness to delays although it comes at the expense of additional network resources. There is thus a tradeoff between the extent of soft handoff required and the handoff execution delay. We compare the performance of the hard and soft handoff schemes and study their sensitivity to the execution delay. Outage and the average transmit power required are used as performance metrics. We present an analytical framework to study this tradeoff.
Starting Page	1185
Ending Page	1189
File Size	263084
Page Count	5
File Format	PDF
ISBN	0780379748
DOI	10.1109/GLOCOM.2003.1258426
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-12-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Sensitivity analysis Multiaccess communication Downlink Performance analysis Algorithm design and analysis Interference Base stations Robustness Measurement
Content Type	Text
Resource Type	Article

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