Performance Comparison of CDX- and TDX-Based Packet Scheduling Schemes in DS/CDMA Downlink(Special Issue on Mobile Multimedia Communications)

スポンサーリンク

概要

• 論文の詳細を見る

• In this paper, we investigate two packet scheduling schemes over the downlink of DS/CDMA systems to support packet data service. These schemes are the code division multiplexing (CDX)-based packet scheduling and the time division multiplexing (TDX)-based packet scheduling. To evaluate each scheme more effectively, we derive the throughput gain of the downlink as a performance measure based on the power constraint equation. In addition, the packet transmission delay of each scheme is derived and compared each other when the packet lengths of the concurrent data users are independently and identically distributed according to the exponential distribution. As the downlink capacity is quite related to the orthogonality factor, our analysis shows from the results that the throughput gain and the transmission delay are highly dependent on this factor. Furthermore, it is shown that the TDX scheduling scheme in CDMA downlink affords better performances than the CDX scheduling scheme, except when the orthogonality factor is around 1.

• 社団法人電子情報通信学会の論文
• 2002-10-01

著者

• Kim K

  Korea Res. Inst. Of Standards And Sci. Daejeon Kor

• Kim Kiseon

  Multimedia Communication System Laboratory Department Of Information And Communications Gwang-ju Ins

• Ahn Jeehwan

  Electronics And Telecommunications Research Institute (etri)

• SHIN Seokjoo

  Multimedia Cimmnication System Laboratory, Kwang-Ju Institute of Science and Technology(K-JIST)

• AHN Jee

  Division of Mobile Commnications, Electronic and Telecommunications Research Intitute(ETRI)

• SHIN Seokjoo

  Digital Communication System Laboratory, Kwang-Ju Institute of Science and Technology (K-JIST)

• Shin S

  Chosun Univ. Kor

• Ahn Jee

  Division Of Mobile Communications Electronic And Telecommunications Research Institute (etri)

関連論文

• Double Relaxation Oscillation SQUID Systems for Biomagnetic Multichannel Measurements(SQUIDs, Superconducting Electronic Devices and Their Applications)
• MEG study on neural activities associated with syntactic and semantic violations in spoken Korean sentences
• A Delay Variation-Based Fair Queueing (DVFQ) Algorithm for Real-Time Multimedia Traffic in ATM Networks
• A Novel Hybrid CDMA/TDMA Protocol with a Reservation Request Slot for Wireless ATM Networks
• A Buffer Management Scheme with Scalable Priorities (SPAS) for Multi-QoS Services in ATM Switching Systems
• MAC Protocols Supporting ITU-T Recommendation G.983.1 for Multimedia Services over ATM-Based PON
• A MAC Scheme Based on the Cell Arrival Timing Information for Multimedia Services over ATM-Based PON
• Dynamic Resource Allocation Scheme in Multi-Service CDMA Systems(Resource Management)(Networking Technologies for Mobile Internet Systems)
• Analysis of Erlang Capacity for the Multimedia DS-CDMA Systems
• Delay Distribution of Data Calls in Integrated Voice/Data CDMA Systems(Wireless Communication Technologies)
• Performance Analysis of CDMA Mobile System Employing LPA Smart Antenna(Antennas and Propagation)
• Performance of Cellular CDMA Systems Using SBF and TBF Array Antennas under Multi-Cell Environment(Spread Spectrum Technologies and Applications)
• Performance Comparison of Fast FH-FDMA Systems with Diversity Combining Receivers under Multitone Interference(Wireless Communication Technology)
• BER Performance of Satellite On-Board Processing Techniques with FH-MFSK Modulation under Various Interferences(Satellite and Space Communications)
• Sensitivity of SNR Degradation of OFDM to Carrier Frequency Offset in Shadowed Two-Path Channels(Wireless Communication Technology)
• Sensitivity of SNR Degradation of OFDM to Carrier Frequency Offset in Shadowed Two-Path Channels
• Sensitivity Analysis of Fast Frequency Hopping Multiple Access Systems due to the Frequency Offset under Rician Fading(Wireless Communication Technology)
• Capacity of CDMA Systems Supporting Heterogeneous Traffic with Binomial Random ON/OFF Activity(Wireless Communication Technology)
• Performance Comparison of FH-MFSK System with Various Diversity Combining Schemes under Worst Case Partial Band Jamming
• BER Performance of Satellite On-Board Processing Techniques with FH-MFSK Modulation under Various Interferences (2002 Joint Conference on Satellite Communications (JC-SAT 2002)--衛星通信技術及び一般)
• Performance Comparison of CDX- and TDX-Based Packet Scheduling Schemes in DS/CDMA Downlink(Special Issue on Mobile Multimedia Communications)
• Packet Error Performance of Hybrid FDMA/CDMA Systems in Frequency Selective Rayleigh Fading
• Subchannel Power Control in the OFDM System to Improve BER Performance under Multipath Channels(Wireless Communications Issue)
• Two Traffic Parameters Efficiently to Approximate the Call Blocking Probability in CDMA Systems with 3 Sectors
• Orthogonal Multicarrier-CDMA Technique with MRC Scheme on Two-Ray Multipath Fading Channels
• Robust Bandpass Sampling for Frequency Instability (Wireless Communication Technology)
• Performance of SIC Scheme with an Activity-Based Disparity Estimation in a DS/CDMA System
• Analysis of Erlang Capacity for the Multimedia DS-CDMA Systems with the Limited Number of Channel Elements
• A Modified Joint CDMA/PRMA Protocol with an Access Channel for Voice/Data Services (Special Section of Papers Selected from ITC-CSCC '98)
• Performance Analysis of CDMA Systems with Adaptive Modulation Scheme(Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
• Sensitivity of the System Capacity with Respect to the System Reliability in a DS-CDMA Cellular System
• Approximation Error Analysis for Coherent EGC Receiver under Nakagami-m Fading Channels(Wireless Communication Technology)
• Performance Analysis of Orthogonal Multicarrier-CDMA on Two-Ray Multipath Fading Channels
• Modified Gaussian Analysis Method of the OFDM System with the Frequency Offset
• Performance Analysis of Asynchronous FFH-MA Systems with a Linear-Combining Receiver in Rayleigh Fading(Wireless Communication Technologies)
• Effects of Frequency and Timing Offsets on the FFH-MA System Over a Rician Fading Channel(Wireless Communication Technologies)

もっと見る 閉じる

スポンサーリンク