دانلود رایگان مقاله بررسی پروتکل مدیریت تحرک در شبکه حسگر بی سیم مبتنی بر فناوری 6LoWPAN

Abstract

Mobility has the advantage of enlarging the WSN applications of the Internet of Things. However, proposing a mobility support protocol in Wireless Sensor Networks (WSNs) represents a significant challenge. In this paper, we proposed a survey on mobility management protocols in WSNs based on 6LoWPAN technology. This technology enables to connect IP sensor devices to other IP networks without any need for gateways. We highlighted the advantages and drawbacks with performances issues of each studied solution. Then, in order to select a typical classification of mobility management protocols in WSNs, we provided some classification criteria and approaches on which these protocols are based. Finally, we presented a comparative study of the existing protocols in terms of the required performances for this network type.

6. Conclusion and perspectives

Mobility of nodes in WSN with 6LoWPAN technology involves many advantages and functionalities for the needed applications. However, it represents a major challenge to face, because of its impacts and changes on this kind of network. In this paper, the state-of-art of mobility support protocols was surveyed. We began our work by introducing the challenges required to design a mobil- ity management. Then, the classification criteria of mobility sup- port protocols were proposed. The choice of such criteria depends on the used application and the needed performances. Based on these criteria, a comparative study of the existing proto- cols was presented to discuss the effect of each used criterion on the performances of the 6LoWPAN networks. After our study and analysis of the existing protocols, the major conclusion to be drawn is that there is no efficient solution to meet all the requirements and constraints of WSN with 6LoWPAN Technology. Thus, some improvements are still required. More- over, the micro mobility was observed to affect the routing path within the LoWPAN. Hence, the micro mobility cannot be treated without considering the routing protocol. IETF ROLL working group proposed a routing protocol for LoW Power and Lossy Networks 1061 called ‘‘RPL’’. This protocol might be considered in our future work to support mobility over the routing protocol in WSN with 6LoW- PAN technology.