In this paper, we present a low latency media access control scheme which we call LLMAC (Low Latency MAC) for event-driven wireless sensor networks (WSN). In this kind of WSN, sensors do not regularly send data to the sink. They send a burst data only when there is an event in the monitoring area. It takes time for this burst data to arrive to the sink. Normally, these events are critical and w...

ATM Forum Document Number: ATM_Forum/99-0045 ************************************************************************ Title: Throughput Fairness Index: An Explanation ************************************************************************ Abstract: The performance testing document uses a particular function to quantify fairness. This contribution explains the reasons for the selection of the p...

Computational Grid allows customers to submit tasks to service providers. To maintain the availability, fairness and performance, it is critical to protect Computational Grid systems from malicious participants. Current solutions to this problem assume that the system would contain either malicious consumers only or malicious service provider only. However, in the real world, both consumers and...

In current wireless LANs multiple kinds of losses occur (i.e., channel errors, collisions, interference). In this paper we examine the extent to which loss differentiation based physical layer transmission bit–rate and contention window adaptation aids in improving network performance. We show that loss differentiation can have a positive impact on performance, especially in low contention scen...

measuring the performance of a production system has been an important task in management for purposes of control, planning, etc. lord kelvin said :“when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind.” hence, manageme...