Aspects Of IEEE Research Articles

A Practical Approach to Provide Security in IEEE 802.15.4 Wireless Sensor Network

During last years, IEEE 802.15.4 has been asserting itself as one of the most promising standards for Wireless Sensor Network. It includes a security sublayer, which provides a number of operations and procedures aimed at securing network communications. But providing security features and power consumption together face a trade-off. In spite of so many research works discussing IEEE 802.15.4 security service, so far not so many focus on their implementation and performance. This paper discusses some security aspects of IEEE 802.15.4, and presents a practical approach to secure point to point link between wireless sensor nodes in details, supporting all the security suites of the standard. The results demonstrated that our approach achieved significantly lower power consumption and higher performance in security.

Application of IEEE 802.15.6 IR-UWB physical layer for medical BAN

In this paper, several aspects of IEEE 802.15.6 DPSK IR-UWB physical layer for usage in the medical BAN are examined. First, the types of the waveforms used in the standard are given. After that we describe the packet structure. We also provide mathematical analysis of two receiver structures: the duty-cycled sampling receiver and the chirp receiver is provided with suitable digital detection methods definitions and analysis. The paper continues with developing a method of synchronisation for preamble structure described in the standard draft together with the synchronisation frame delimiter (SFD) detection method. Preamble structure itself is discussed together with offering an alternative that has better performance with less computational complexity. The performances of receivers designed according to specifications given in the paper are simulated in multi-BAN environments in order to verify robustness of such BAN devices to interference from co-located BANs, essential for the application of this physical layer in the medical BAN.