A flexible bandwidth management scheme namely Bandwidth-based Polling (BBP) for Bluetooth is proposed. A framing structure of time is defined in BBP, and the master allocates proper number of slots for each active slave in a frame. BBP allows the master to poll a slave more than once to achieve high flexibility for bandwidth allocation. The calculation of the polling time as well as the payload...

For high-speed packet transfer in the wireless environment, the shared radio medium is provided to mobile terminals (MT) through the control of MAC layer. Contention and polling technique are known as two fundamental methods that are used in this environment. This paper aims to compare the operation of these two methods if they are enhanced to use in a connected micro-cells system to support fo...

Donald Trump was elected president of the United States on 8 November 2016. Within hours, TV pundits were declaring, “Data is dead.” Is this a case of water everywhere but not a drop to drink? It appears so on the surface. More than 250 nationally representative voter-preference surveys were done after the Republicans selected Trump for president and Mike Pence for vice president and the Democr...

In this paper we present stochastic Petri nets (SPNs) that can be used for the evaluation of polling mechanisms. Polling mechanisms (or systems) appear in many forms in computer-communication systems: the well-known token-ring and token-bus network access schemes such as present in IEEE P802.4/5 and in FDDI, and the scheduling mechanisms in switching fabrics, e.g., for ATM systems, operate alon...

Interrupt processing can be a major bottleneck in the end-to-end performance of Gigabit networks. The performance of Gigabit network end hosts or servers can be severely degraded due to interrupt overhead caused by heavy incoming traffic. In particular, excessive latency and significant degradation in system throughput can be encountered. Also, user applications may livelock as the CPU power ge...