Security Issues and Remidies in Wireless Sensor Networks- A Survey

Abstract

Due to significant advancement in wireless communication, wireless sensor networks (WSNs) have attracted great attention in recent years. WSNs are randomly deployed, battery operated autonomous systems consisting of large number of sensors nodes which are responsible for transmitting the real-time sensed data for a specific application in the monitoring area to the base station where it can be further processed and analyzed. However, due to wireless communication, the network is easily compromised. Solutions dedicated to wire networks are not suited in the resource constrained wireless network. There is still a scope for wide research potential in the field of wireless sensor network security. In this paper, we analyzed the issues related to security in WSNs and also highlight the research area in the field of wireless sensor networks.

VLKM: Virtual location-based key management scheme for Wireless Sensor Networks

“…In [2] the author analyzed basic issues related to security in WSNs. Two new kind of attacks (Forward and backward secrecy) identified in [2], are very serious threats in any type of dynamic key management scheme.…”

“…Two new kind of attacks (Forward and backward secrecy) identified in [2], are very serious threats in any type of dynamic key management scheme. So these attacks must be considered when design a key management scheme.…”

“…The coordinates of this virtual origin is not (0, 0). For example if virtual location of any cluster is (5,2) and the coordinates of virtual origin is (3, 2) then the virtual location of this cluster after mapping is (8,4). c) All the sensor of same cluster will move virtually in same direction, with same speed and angle of movement.…”

The Research of Secure Transport Protocol Based on Node's Clock Characteristics for Body Area Networks

“…The pass loss rate of a BAN/BSN is higher than the general WSN due to the effect of the human body on propagation loss and link quality in various postures [4], the reactive protocol AODV is suitable for this situation which the connection is not stable and the forming route is the shortest; literature [25] has evaluated the performance of OLSR, AODV and DSR respectively with multiple BANs/BSNs in hospitals, and concluded that AODV is the best related to the others from delay, number of hops, throughput and packet loss point of view also.…”

“…Because the physiological and medical data sensed by sensors in a BAN/BSN play important roles in medical diagnosis and treatment, and involve privacy of the patient, so the data security and privacy is one of the key problems for the BAN/BSN [2]. In order for a patient to wear and move, the wireless channel is usually used for the data transmission between nodes in a BAN/BSN, especially multi-hop transmission in a BAN/BSN will be the main mode of communication in the future, this is because short [4]. The main drawback of this solution is the great memory overhead it produces when N is larger, since each node have to store many keys may never be used.…”