Information security and privacy in the e-health domain is an issue of growing concern. The adoption of electronic patient records, increased regulation, provider collaboration and the increased need for a faster information exchange between patients, providers and payers, all point to the need for a better information security. Therefore, the aim of this paper is to provide secure access to el...

Abstract – This paper presents and analyses a new near–optimum medium access control (MAC) protocol. The proposed access scheme is suitable for a CDMA mobile communication environment and minimises the total number of spreading codes needed to achieve a certain throughput. It also has a delay performance approaching that of an ideal optimum M/M/K system, where K is the number of spreading codes...

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Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) is probably the most widespread multiple access protocol in use today, mainly due to the tremendous success of the IEEE 802.11 suite of standards. Until now most of the studies done about the protocol have focused on maximizing the performance. However as the bands become more crowded and the user terminals become easier to reconf...

The WebID protocol enables the global identi cation and authentication of agents in a distributed manner by combining asymmetric cryptography and Linked Data. In order to decide whether access should be granted or denied to a particular WebID, the authenticating web server may need to retrieve other pro les and linked resources to work out e.g. if the requesting agent is member of an authorized...

A new MAC layer protocol, DQRAP (Distributed Queueing Random Access Protocol), provides performance with respect to throughput and delay that approaches that of an ideal protocol. This paper introduces PDQRAP, a prioritized version of DQRAP. Two formats, the Extra-bit and the Extra-slot, each a variation of the basic DQRAP are described. Simulation results are presented that show that under a t...

This paper presents the design and analysis of a media access protocol implemented in LIGHTNING, an optical WDM network testbed that has been designed for high-performance supercomputer interconnection. The architecture is based on a dynamically reconfigurable hierarchical WDM network to interconnect a large number of supercomputers and create a distributed shared memory (DSM) environment. This...

Both the size, and the interconnectivity of computer networks are increasing tremendously. However, the possibility of an attack compromising the network is also increasing, making network security critical. Strong authentication protocols are needed to restrict network access to only authorised users. Most existing protocols for authentication and network access are based on centralised authen...

Background: Inflammation in the vascular access site results in infection, which is the second leading cause of death in hemodialysis patients. However, there is no specific protocol available for sterilization before vascular access in such patients. Aim: to determine the effect of the combination of alcohol and Betadine on the severity of inflammation in the vascular access site in hemodialys...