NDLI: A New Random Access Method for Satellite-UMTS

Content Provider	IEEE Xplore Digital Library
Author	Bing-jie Zhang Han-ying Hu Ming-kun Wang
Copyright Year	2010
Abstract	A new random access method is submitted in this paper, which can be used in Satellite-UMTS system and others characterized long transmission delay. With reference to the access design in S-UMTS, the method designs some new configurations for access frame and slot, and proposes a new way to transmit the access request. With the enlargement of spreading ratio for access message, the bit error ratio of message is reduced. The detection probability of access preamble is enhanced because of augmentation for its length and increased length of preamble code, which can reduce the collision probability. The enlargement of protected interval time can cope with the difference of transmission delay between user equipment (UE) under the same beam-spot. The proposal transmission procedure can improve average accepted time in evidence. In addition, Maximum-Like algorithm is suggested to detect the preamble code of UE and reduce times of compute.
Starting Page	1
Ending Page	4
File Size	727533
Page Count	4
File Format	PDF
ISBN	9781424437085
DOI	10.1109/WICOM.2010.5600981
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Satellites Spread spectrum communication Error correction codes Error correction Proposals Multiaccess communication Channel models
Content Type	Text
Resource Type	Article

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