【摘 要】
：
OAM (Operations, Administration and Maintenance) system is a very important component of 3G cellular network. In order to acquire overall management, fast respo
【机 构】
：
Dept.of Electronic Eng.,Shanghai Jiaotong Univ.,Shanghai 200030,China
论文部分内容阅读
OAM (Operations, Administration and Maintenance) system is a very important component of 3G cellular network. In order to acquire overall management, fast response and steady operation, an SCTP (Stream Control Transmission Protocol) based OAM, i. e. , SOAM system was proposed. SOAM implements new characters of SCTP such as multi-stream, enforced SACK and heartbeat mechanism on its transport layer. These characters help SOAM decrease the message transmission delay and accelerate the link failure detection. Besides, a new component named SOAM agent was introduced to improve the operation efficiency of SOAM. The experimental results prove the proposed SOAM system achieves better performance on signaling transmission compared with conventional TCP based OAM system.
其他文献
CDIO工程教育模式近些年来在教育领域日趋流行,它是以＂项目教育和学习＂为理念、以学生实际操作为教育主线,带动理论教学的一种全新教学模式,关注对学生分析问题、解决问题、团
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
汉语词汇中有着丰富的文化词语，对这些词语的误写、误用会带来交际的障碍。上世纪80年代开始，对外汉语教学界开始逐渐重视语言教学与文化教学的关联性，并对教学中涉及的文化因素
F0 (fundamental frequency) contour was studied under different prosodic environment in continuous speech and a novel model of F0 contours prediction was propose
本文以现代汉语量词为研究对象，试从语义学和认知语言学角度考察量词的空间性特征，并从空间性特征的强弱上对量词进行再分类，分析不同程度空间性量词的语法、语义表现，进而从量、
课堂提问是指在课堂教学过程中,根据教学内容、教学目的和教学要求,设置问题进行教学问答的一种教学形式。提问是联系师生思维活动的纽带,提问合理,问题获得解决,就能强化他
本文主要采用轻动词理论，对现代汉语中的述宾式使役句、存现句和供用句这三大类结构进行了讨论分析。全文共分为六章。 第一章是绪论，主要介绍本文的研究内容、研究思路，交代
自然主义文学产生于十九世纪的法国，其影响遍及欧美。它尝试将十九世纪科学的发明和方法应用于文学创作，是一个科学时代的文学。自然主义文学将现实主义文学的忠实创作原则推向
WDM passive optical network becomes more favorable as the required bandwidth increases, but currently few media access control algorithms adapted to WDM access
在移动互联网占据绝对优势的当下,媒体环境发生了颠覆性改变。本文通过分析新媒体传播方式的特点,深入揭示传统媒体所面临的挑战,同时提出新形势下传统媒体应当制定新的采访