A Carrier Frequency Recovery Scheme for Spread ALOHA Communications System

• SASAMORI Fumihito

  Graduate School of Science and Engineering, Waseda University

• TAKAHATA Fumio

  Graduate School of Science and Engineering, Waseda University

Bibliographic Information

Other Title

• スプレッドアロハ通信用キャリア再生方式の一構成法

Abstract

A scheme of carrier frequency recovery is proposed to operate under low E_b/N_o condition for the direct sequence spread ALOHA communications system which employs a unified spread code. This scheme uses a matched filter to estimate carrier frequency offset precisely by improving S/N. It is found from the quantitative evaluation that this scheme, by combining with powerful symbol timing recovery, provides the good characteristics of carrier frequency recovery and bit error rate under low E_b/N_o condition.

Journal

• Technical report of IEICE. SAT

  Technical report of IEICE. SAT 97 (411), 9-15, 1997-11-28

  The Institute of Electronics, Information and Communication Engineers

Keywords

• Direct sequence spread spectrum
• Spread ALOHA
• Carrier Frequency Recovery
• Matched Filter
• Two step estimation

Details

• CRID: 1572824502212800256
• NII Article ID: 110003193121
• NII Book ID: AN10012987
• Text Lang: ja
• Data Source:
  • CiNii Articles