algorithm can drive the IEEE 802.11 protocol close to the theoretical throughput limit. Hence we propose a distributed algorithm that enables each station to tune its backoff algorithm at run-time. The performances of the IEEE 802.11 protocol, enhanced with our algorithm, are extensively investigated

reservation protocol which uses dynamic sender-initiated reservations to achieve a highly bandwidthefficient reservation mechanism with excellent scalability with regards to round trip time, data rate and number of hosts. Keywords Resource Reservation, Quality of Service 1 INTRODUCTION It is clear

wireless MACs such as IEEE 802.11 in almost every way: energy conservation and self-configuration are primary goals, while per-node fairness and latency are less important. S-MAC uses three novel techniques to reduce energy consumption and support self-configuration. To reduce energy consumption

The IEEE 802.11 wireless LAN standard attempts to provide high throughput and reliable data delivery for stations transmitting over a lossy, wireless medium. To efficiently allocate resources for bursty sources, the 802.11 Medium Access Control (MAC) sublayer uses a type of Carrier Sense Multiple

the widely popular IEEE 802.11 protocol. Simulation results of an implementation of RBAR inside IEEE 802.11 show that RBAR performs consistently well.

Abstract—The IEEE 802.11 standard for Wireless Local Area Networks (WLANs) employs a Medium Access Control (MAC), called

differentiation schemes for IEEE 802.11. The first one is based on scaling the contention window according to the priority of each flow or user. The second one assigns different inter frame spacings to different users. Finally, the last one uses different maximum frame lengths for different users. We simulate

sensor networks to be deployed in an ad hoc fashion, with nodes remaining largely inactive for long time, but becoming suddenly active when something is detected. These characteristics of sensor networks and applications motivate a MAC that is different from traditional wireless MACs such as IEEE 802.11

Capacity improvement is one of the principal challenges in wireless networking. We present a link-layer protocol called Slotted Seeded Channel Hopping, or SSCH, that increases the capacity of an IEEE 802.11 network by utilizing frequency diversity. SSCH can be implemented in software over an IEEE

not provide information in a form that is helpful to protocol developers. This paper describes a series of experiments which obtained detailed measurements of the energy consumption of an IEEE 802.11 wireless network interface operating in an ad hoc networking environment. The data is presented as a