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Title: A Novel Scheduling Scheme to Share Dropping Ratio while Guaranteeing a Delay Bound in a Multicode-CDMA Network
Authors: Kong, P.-Y.
Chua, K.-C. 
Bensaou, B.
Keywords: MultiCode-CDMA
Proportional dropping ratio guarantee
Upper delay guarantee
Variable capacity
Issue Date: Dec-2003
Citation: Kong, P.-Y., Chua, K.-C., Bensaou, B. (2003-12). A Novel Scheduling Scheme to Share Dropping Ratio while Guaranteeing a Delay Bound in a Multicode-CDMA Network. IEEE/ACM Transactions on Networking 11 (6) : 994-1006. ScholarBank@NUS Repository.
Abstract: A MultiCode-CDMA network that is capable of providing quality-of-service guarantees will find widespread application in future wireless multimedia networks. However, providing delay guarantees to time-sensitive traffic in such a network is challenging because its transmission capacity is variable even in the absence of any channel impairment. We propose and evaluate the performance of a novel transmission scheduling scheme that is capable of providing such a delay guarantee in a MultiCode-CDMA network. The proposed scheme drops packets to ensure that delays for all transmitted packets are within the guaranteed target bounds, but packets are dropped in a controlled manner such that the average dropping ratios of a set of time-sensitive flows can be proportionally differentiated according to the assigned weighting factors or shares. We provide extensive simulation results to show the effectiveness of the proposed scheme as well as to study the effects of various parameters on its performance. In particular, we show that it can simultaneously guarantee a delay upper bound and a proportionally differentiated dropping ratio in a fading wireless channel for different traffic loads, peak transmission rates, and weighting factors of individual flows.
Source Title: IEEE/ACM Transactions on Networking
ISSN: 10636692
DOI: 10.1109/TNET.2003.820249
Appears in Collections:Staff Publications

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