An Adaptive Channel Access Control Method for CDMA/PRMA(Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)

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概要

• 論文の詳細を見る

• An adaptive channel access control method for CDMA/PRMA protocol is proposed. The proposed method utilizes a load and backlog based access control. Dynamic optimal channel loads by which the required packet loss probability can be satisfied are obtained. The number of contending terminals is also estimated more accurately, using statistical characteristics of source models. Permission probability is then calculated based on the dynamic optimal channel load and the estimated number of contending terminals such that the mean channel load (the mean number of packets transmitted in each time slot) can be maintained at the optimal channel load. By maintaining the mean channel load at the dynamic optimal channel load, the radio channel can be very effectively utilized, satisfying the required packet loss probability. A backlog based data transmission using a mixed mode of contention and reservation mode is also proposed to reduce redundant contention and corruption. Simulations are carried out in an isolated cell environment and a cellular environment. The simulation results show that the system capacity can be improved significantly by the proposed method compared with the conventional permission control methods.

• 社団法人電子情報通信学会の論文
• 2003-01-01

著者

• LEE Kang

  Department of Machine Intelligence and Systems Engineering, Tohoku University

• CHO Jung

  Department of Chemical Engineering, Konkuk University

• Lee K

  Department Of Industrial And Information Systems Engineering Seoul National University Of Technology

• KANG Seok

  Network Technology Lab., Electronics and Telecommunications Research Institute

• KOOK Kwang

  Department of Industrial and Information Systems Engineering, Seoul National University of Technolog

• YOON Hyunsoo

  Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and T

• Lee Kang

  Department Of Electronics Engineering Konkuk University

• Cho Jung

  Department Of Electrical Engineering And Computer Science Korea Advanced Institute Of Science And Te

• Kook Kwang

  Department Of Industrial And Information Systems Engineering Seoul National University Of Technology

• Yoon Hyunsoo

  Department Of Electrical Engineering And Computer Science Korea Advanced Institute Of Science And Te

• Yoon Hyunsoo

  Department Of Computer Science Korea Advanced Institute Of Science And Technology

• Kang Seok

  Network Technology Lab. Electronics And Telecommunications Research Institute

• Yoon Hyunsoo

  Department Of Computer Science And Center For Artificial Intelligence Research Korea Advanced Instit

• Lee Kang

  Department Of Chemistry Research Institute Of Natural Science And Environmental Biotechnology Nation

• Lee Kang

  Department of Bioengineering and Robotics, Tohoku University, 6-6-01 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan

• Lee Kang

  Department of Bioengineering and Robotics, Tohoku University, 6-6-01 Aza Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan

• Cho Jung

  Department of Chemical Engineering, Kongju National University

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