Maximizing the Effective Channel Capacity of Power Controlled WCDMA Systems under Rayleigh Fading Environments (Terrestrial Radio Communications)

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概要

• 論文の詳細を見る

• This paper studies the optimization of the effective channel capacity of wideband code division multiple access (WCDMA) systems under Rayleigh fading environments. Firstly, the results for Shannon capacity of fading channels with channel side information are reviewed, where the capacity is achieved by using an optimal power control scheme. Secondly, an optimal interference threshold α_0 is set for a given system outage probability P_<out> to minimize total interference. Finally, the effective channel capacity of WCDMA is defined and a target SIR level γ is derived with the Lagrangian multiplier method to maximize the effective channel capacity. It is shown that α_0 is dependent on the power control interference ratio (PCIR) ρ, the number of diversity paths identified by the receiver M, and the outage probability of the system. Simulation results are provided to validate the theoretical deductions. We conclude that the total effective channel capacity will be maximized as long as M〓4, and ρ〓0.5 for a proper value of α_0.

• 社団法人電子情報通信学会の論文
• 2006-03-01

著者

• Zhu Shihua

  The School Of Electronics And Information Engineering Xi'an Jiaotong University

• LIU Jiabin

  the School of Electronics and Information Engineering, Xi'an Jiaotong University

• LI Wenyuan

  the School of Electronics and Information Engineering, Xi'an Jiaotong University

• Liu Jiabin

  The School Of Electronics And Information Engineering Xi'an Jiaotong University

• Li Wenyuan

  The School Of Electronics And Information Engineering Xi'an Jiaotong University

関連論文

• Maximizing the Effective Channel Capacity of Power Controlled WCDMA Systems under Rayleigh Fading Environments (Terrestrial Radio Communications)

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