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Please use this identifier to cite or link to this item: http://hdl.handle.net/1993/2871

Title: Dynamic rate and power adaptation for forward link transmission using high-order modulation and multicode formats in cellular WCDMA networks
Authors: Kim, DI
Hossain, E
Bhargava, VK
Keywords: cellular wideband code division multiple access (WCDMA)
dynamic rate and power adaptation
frame fill efficiency
high-order modulation
multicode transmission
WIDE-BAND CDMA
ALLOCATION
SYSTEMS
Issue Date: 30-Sep-2005
Citation: 1536-1276; IEEE TRANS WIREL COMMUN, SEP 2005, vol. 4, no. 5, p.2361 to 2372.
Abstract: This paper addresses. the problem of dynamic rate and power adaptation for forward link data transmission using high-order modulation and multicode formats in cellular wideband code division multiple access (WCDMA) networks. A novel framework for dynamic joint adaptation of modulation order, number of code channels (hence transmission rate), and transmission power is proposed for downlink data transmission in a cellular WCDMA system where different users have similar frame error rate (FER) requirements. Based on a general downlink signal-to-interference ratio (SIR) model, the problem of optimal dynamic rate and power adaptation is formulated, for which the rate and power allocation can be found by an exhaustive search. Two heuristic-based dynamic rate and power allocation schemes are proposed. Performance of dynamic joint rate and power adaptation under the proposed framework is evaluated for a random micromobility model using computer simulations. Also, an analytical approach to evaluate the throughput performance of dynamic rate and power adaptation using high-order modulation and multicode formats is presented.
URI: http://hdl.handle.net/1993/2871
DOI: http://dx.doi.org/10.1109/TWC.2005.853814
Appears in Collection(s):Research Publications (UofM Student, Faculty and Staff only access)

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