Disconnection protocol support in mobile access

• Autor(a) principal: Sadok,Djamel H.
• Data de Publicação: 1999
• Outros Autores: Kelner,Judith, Cordeiro,Carlos de Morais
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of the Brazilian Computer Society
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-65001999000100006
• topic: Mobile Computing; Communication Protocols; Planned Disconnection

Mobile access remains limited by relatively short battery power lifetime, expensive wireless bandwidth and areas with difficult or no continuous communication coverage. It is believed that as many as 70% of laptop users would operate in planned or non planned disconnected mode. Although existing approaches have led to implementing disconnected mode operation within applications, we chose to introduce changes to a mobile extension of the Internet transport protocol. We show through simulation that this protocol performs better than TCP. In order to evaluate disconnection parameters including disconnection and inter-disconnection times, a performance study of disconnection is presented. Finally we argue that disconnection is an important service and should therefore be considered as a Quality of Service (QoS) parameter to be negotiated among mobile and fixed communication entities.