Overview on Technical Issues for Future Mobile Network and a Proposal of DLC Scheme in Wireless Link

  • Authors:
  • Osamu Kato;Koichi Homma

  • Affiliations:
  • Wireless Solution Laboratory, Matsushita Communication Industrial Co., Ltd., 5-3, Hikarinooka, Yokosuka-shi Kanagawa, 239-0847 Japan E-mail: Osamu.Kato@yrp.mci.mei.co.jp;Wireless Solution Laboratory, Matsushita Communication Industrial Co., Ltd., 5-3, Hikarinooka, Yokosuka-shi Kanagawa, 239-0847 Japan

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 2001

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Abstract

This paper gives an overview on technical issues for future mobile networks. the QoS control for multimedia services, security function, expansion of network capacity, expansion of address space, multicast function, radio link quality and mobility control of terminals are taken up as technical issues.Then, a novel DLC scheme in wireless link named EREP-ARQ (Estimation and Report of Error Pattern ARQ) which can reduce the retransmission ratio is proposed. In this scheme, error pattern generated in the radio link is estimated at the receiver side and the estimated error pattern is returned to the transmission side. If the estimation is correct, no retransmission is needed. Compared to conventional SR-ARQ, throughput can be improved by17% and Cell Loss Ratio (or Packet Loss Rate) can be reduced to less than 1/10 by the proposed EREP-ARQ.