Security issues in wireless network

Abstract

In the last period of time, security in wireless networks and quality of service, became very important and it is a subject of active researches. Communication signals which are extended in some environment can be received by someone else. Companies and individual users must recognize potentially existing problems and try to prevent them. Every system which needs to secure has some deficiencies in it. These deficiencies or part of them can be used by attacker. subsequently, for providing security of the system it is important to consider all possible threats and attacks which can be performed against the system. security mechanisms must provide system security by considering the given threats, attacks and deficiencies. in this article questions of security of wireless networks are discussed, it analyzes possible threats and the appro- priate mechanisms of protection. The most common forms of threats of wireless networks (non-authorised access, Denial of service, Dos and man-in-the-middle attacks) are described by its own properties and are given recommen- dations for security issue.