Archives by date

You are browsing the site archives by date.

Research on Vector-Constraint Mobility Models in Mobile Ad Hoc Networks

Research on Vector-Constraint Mobility Models in Mobile Ad Hoc Networks

Mobile Ad Hoc Networks (MANETs) are comprised of a collection of wireless mobile nodes communicating with each other without any support of fixed communication facilities. Ad Hoc netwoks are self-organized, which are very useful in such applicants where temporary, fast and on-demand communication needed to be built.As one of the unique characteristics of Mobile Ad [...]

Evidence Theory in the WSN in the Application of Data Fusion

Evidence Theory in the WSN in the Application of Data Fusion

This paper researches on the application in the data fusion for wireless sensors network of D-S theory, one of the classic algorithm for conventional multi-sensors data fusion. The practical WSN usually needs to deal with uncertain information with data fusion technology for reasonable and effective results. D-S theory is a powerful and natural data fusion [...]

Research on WCDMA and GSM Radio Common Network

Research on WCDMA and GSM Radio Common Network

The GSM network has already been reaching higher coverage rates after developing and building for many years afterwards. At the beginning of the 3G construction, it is hard to achieve the continuous coverage and the same coverage as the 2G network in the covering area. That WCDMA/GSM systems forms a network through the Inter operation, [...]

IEEE 802.15.4MAC Protocol Analysis and Optimization

IEEE Std 802.15.4, as one of the best standard for the present wireless sensor networks, specifies the PHY(physical layer) and MAC(medium access control layer) for low-rate wireless personal area networks which focuses on low-cost, low-complexity, low-power consumption and capability of self organization. However, it still needs further researches and optimizations to better meet the requests [...]