Dynamic rate adaptation based on multidimensional multicode DS-CDMA in cellular wireless networks

TitleDynamic rate adaptation based on multidimensional multicode DS-CDMA in cellular wireless networks
Publication TypeJournal Article
Year of Publication2003
AuthorsKim, D. I., E. Hossain, and V. K. Bhargava
JournalCommunications, IEEE Transactions on
Pagination247 - 260
Date Publishedfeb.
Keywordsbase station-assisted dynamic rate adaptation, cellular multidimensional multicode, cellular radio, cellular wireless networks, code division multiple access, data communication, direct-sequence code-division multiple-access, equilibrium point analysis, exponential computational complexity, heuristic-based suboptimal rate adaptation, interference-based dynamic rate adaptation, log-normal shadowing, MDMC signaling, mobile-controlled dynamic rate adaptation, multicell rate adaptation, multidimensional multicode DS-CDMA, multipath channels, multipath fading, multiuser channels, optimal dynamic rate adaptation, packet data network, packet radio networks, radio link level dynamic rate adaptation, radio link level throughput, radio links, radiofrequency interference, spread spectrum communication, steady-state system, telecommunication control, telecommunication signalling, uplink data transmission, variable spreading factor signaling

Dynamic rate adaptation for uplink data transmission in a cellular multidimensional multicode (MDMC) direct-sequence code-division multiple-access packet data network is modeled and analyzed. An analytical framework is developed to evaluate the performances of radio link level dynamic rate adaptation schemes under multipath fading and log-normal shadowing. The radio link level throughput under optimal dynamic rate adaptation (having exponential computational complexity) and different heuristic-based suboptimal rate adaptation schemes can be assessed under the presented analytical framework. The performance of MDMC signaling is compared with that of the single-code variable spreading factor (VSF) signaling. To this end, based on an equilibrium point analysis of the system in steady-state, a base station-assisted and mobile-controlled dynamic rate adaptation scheme is presented.


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