Performance Analysis of Mobile Satellite Noncoherent DS-CDMA Systems with Orthogonal Signals

スポンサーリンク

概要

• 論文の詳細を見る

• As noncoherent direct sequence code-division multiple-access (DS-CDMA) mobile satellite communications, two typical transmission schemes are compared ; one is a quasisynchronous diffierential BPSK (QS-DBPSK) where orthogonal signals are used for reducing the multiple access interference and the other is M-ary orthogonal signaling (MOS) scheme where orthogonal signals are used for exploiting more efficient modulation. The performances are evaluated in additive white Gaussian noise (AWGN) and shadowed Rician fading (SRF) channels and the effects of timing misalignments in the QS-DBPSK system and the amount of Doppler shifts of a SRF channel are investigated. The results show that MOS much outperforms QS-DBPSK in the region of low system loading up to about 50% and a precise chip synchronization is required for QS-DBPSK. In a SRF channel, it is also shown that QS-DBPSK much outperforms MOS in a slow fading channel but MOS has a performance gain against the large Doppler shift.

• 社団法人電子情報通信学会の論文
• 2001-03-01

著者

• Ahn J‐k

  Yonsei Univ. Seoul Kor

• AHN Jun-Kui

  the Department of Electrical and Electronic Engineering, Yonsei University

• WHANG Keum-Chan

  the Department of Electrical and Electronic Engineering, Yonsei University

• CHO Yong-Hoon

  the Department of Electrical and Electronic Engineering, Yonsei University Presently, with the Groun

• HONG Een-Kee

  the Department of Electrical and Electronic Engineering, Yonsei University Presently, with the Schoo

• Whang K‐c

  Yonsei Univ. Seoul Kor

• Hong E‐k

  Kyunghee Univ. Yongihn‐shi Kor

• Hong Een-kee

  The Department Of Electrical And Electronic Engineering Yonsei University Presently With The School

• Cho Yong-hoon

  The Department Of Electrical And Electronic Engineering Yonsei University Presently With The Ground

• Whang Keum-chan

  Communication System Lab. Department Of Electrical And Electronic Engineering Yonsei University

• Whang Keum-chan

  The Department Of Electrical And Electronic Engineering Yonsei University

• Whang Keum-chan

  The Department Of Electrical Engineering Yonsei University

関連論文

• Throughput Analysis of 1/N-Slotted DS-CDMA Packet Radio Networks Using a Slot-Averaged SIR Model
• Performance Analysis of Mobile Satellite Noncoherent DS-CDMA Systems with Orthogonal Signals
• New Stopping Criterion of Turbo Decoding for Turbo Processing(Fundamental Theories)
• New Stopping Criterion of Turbo Decoding for Turbo Processing
• The Effects of Rain Attenuation in a Quasi-Synchronous CDMA Return Link for a Ka-Band Satellite Communication System(Special Section of Fundamentals of Multi-dimensional Mobile Information Network)
• On Performance Improvements of Spread Slotted ALOHA Network with CLSP/CC (Special Section on Spread Spectrum Techniques and Applications)
• Effect of Delay Spread on Multi-Bandwidth CDMA System with Multiple Order Selection Combining
• Turbo Coded CDMA System with an Interference Cancellation Technique(Special Issue on the Latest Development of Telecommunication Research)

スポンサーリンク