Node Activity Degree and Message Copies Estimating Methods for Opportunistic Networks

摘要：

Node activity degree can reflect a nodes ability to deliver message. Number of message copies can reflect the probability that this message has been delivered successfully. Both of them will be useful when we design routing and cache management protocol for opportunistic networks. This paper proposes methods to estimate node activity degree and number of message copies. We first show the way how to evaluate nodes activity degree, and then give method to estimate nodes activity degree weight According to the historical information of meeting, we prove that if a group of messages have lived for the same time, then the distribution of number of message copies in this group is normal distribution. So we estimate number of message copies as the expectation of their distribution. Simulation results show the proposed methods can effectively estimate the node activity degree and number of message copies.

关键词： opportunistic network node activity cache management message copies

作者: Wu Da-peng Zhou Jian-er Wang Ru-yan Zhang Pu-ning

作者单位: Special Research Centre for Optical Internet & Wireless Information Networks, Chongqing University o Special Research Centre for Optical Internet & Wireless Information Networks, Chongqing University o

会议类型: 国际会议

会议名称: 2011 International Conference on Information and Industrial Electronics(2011年信息与工业电子国际会议 ICIIE 2011)

会议地点: 成都

会议语种:英文

页码: 438-441

在线出版日期: 2011-01-14（万方平台首次上网日期，不代表论文的发表时间）