In this paper, an IEEE 802.15.6 wireless body area networks (WBAN) medium access control protocol is developed to support a wireless USB (WUSB) application as a protocol adaptation layer (PAL). Due to portable and wearable nature, the WUSB over IEEE 802.15.6 hierarchical medium access control (MAC) protocol has to support the power saving operation and integrate WUSB transactions with WBAN traf...

Designing a medium access control (MAC) protocol is a key for implementing any practical wireless network. In general, a MAC protocol is responsible for coordinating users in accessing spectrum resources. Given that a user in cognitive radio(CR) networks do not have priority in accessing spectrum resources, MAC protocols have to perform dynamic spectrum access (DSA) functions, including spectru...

The most mature medium access control protocol for wireless local area networks is the IEEE 802.11 standard. The primary access mode of this protocol is based on the mechanism of carrier sense multiple access with binary exponential backoff. We develop a finite-source feedback queueing model for this access mode. In this model we derive expressions for the throughput and the first moment of the...

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...

This paper provides a qualitative analysis of cross-layer protocol for proficient communication in wireless sensor networks. The simplified and energy efficient protocol should be designed in order to maximize the network lifetime because of its inflexible resource constraints, ultra power limitation, and tiny embedded devices. We propose an enhanced cross-layer protocol for proficient communic...

The means of achieving full duplex broadband access to either the home or office has been the focus of much research and entrepreneurial development in the past 5 years. This is the so-called “last mile” problem. One approach is duplex access to either a geostationary earth orbit (GSO) or non-GSO satellite, through a relatively small satellite dish located at each home or office. This scenario ...

A hierarchical time division multiple access (HTDMA) medium access control (MAC) protocol is proposed for clustered mobile underwater acoustic networks. HTDMA consists of two TDMA scheduling protocols (i.e., TDMA1 and TDMA2) in order to accommodate mobile underwater nodes (UNs). TDMA1 is executed among surface stations (e.g., buoys) using terrestrial wireless communication in order to share mob...