Because mpeg video need more storage space ( though achievements in compression algorithms have decrease it to a reasonable degree ) , high transmission bandwidth , low transmission delay and delay jitter ( especially to real - time video ) . how to guarantee video transmission qos ( quality of service ) 如何在宽带ip和atm网络上有效地传输mpeg视频,才能有效地保证视频传输的服务质量参数qos (如延迟、延迟变化等) ,以及用户终端表示的表现质量参数qop ,一直是近年来学术界研究的热点。
服务质量: service quality参数: parameter质量参数: mass parameter; quality parameters服务质量: service level; service qualities; service quality环境质量参数: environmental quality parameter导游服务质量: quality of tour-guide service服务质量函数: quality of service function服务质量衡准: criterion of service服务质量评价: quality-of-service assessment服务质量统计: sqs service quality statistics服务质量协商: quality of service negotiation服务质量协议: sqa service quality agreement服务质量指数: sqi旅游服务质量: service quality in tourism提高服务质量: improve service quality; improve the quality of service通信服务质量: qos quality of service物流服务质量: logistics service quality子网服务质量: subnetwork quality of service不断提高服务质量: to steadily improve service to improve the quality of service continually服务质量控制点: qr qor reference point服务质量网络结构: qos network architectures服务质量自动观察: automatic observation of service quality旅游服务质量标准: standards of service quality in tourism旅游服务质量评定: evaluation of service quality in tourism旅游服务质量认证: validation of service quality in tourism