relatively few proposals for W-LANs. In this paper we present a rate adaptive MAC protocol called the Receiver-Based AutoRate (RBAR) protocol. The novelty of RBAR is that its rate adaptation mechanism is in the receiver instead of in the sender. This is in contrast to existing schemes in devices like

local-area networks. This paper presents one such mechanism: a rate adaptive MAC protocol based...

Recent theoretical results show that it is optimal to allow interfering sources to transmit simultaneously, as long as they are outside a well-defined exclusion region around a destination, and to adapt the rate to interference. In contrast, interference from inside the exclusion region needs

the channel conditions. However, there is little available simulation implementation available for the multi-rate adaptation research purpose. In this project, an extension of rate-adaptive MAC protocol based on the Receiver-Based Auto-Rate (RBAR) was developed to enable the multi-rate simulation in NS2

. However, a MAC protocol in IEEE 802.15.3 standard does not specify the method to choose an appropriate data rate. In this paper, we propose a rate-adaptive Medium Access Control (MAC) protocol for HR WPAN. The data rate for the next transmission is selected by channel prediction based on the currently

to be controlled. Furthermore, when a source transmits, it should do so at maximum power. Based on these theoretical findings, we propose a cross-layer design of MAC and physical layer and present a fully distributed, rate adaptive MAC protocol for ultra-wide band (UWB) where sources constantly adapt their channel

In this paper we describe T-MAC, a contention-based Medium Access Control protocol for wireless sensor networks. Applications for these networks have some characteristics (low message rate, insensitivity to latency) that can be exploited to reduce energy consumption by introducing an active

We propose B-MAC, a carrier sense media access protocol for wireless sensor networks that provides a flexible interface to obtain ultra low power operation, effective collision avoidance, and high channel utilization. To achieve low power operation, B-MAC employs an adaptive preamble sampling

This paper proposes S-MAC, a medium access control (MAC) protocol designed for wireless sensor networks. Wireless sensor networks use battery-operated computing and sensing devices. A network of these devices will collaborate for a common application such as environmental monitoring. We expect

receiver specifies its level of subscription by joining a subset of the groups. In this paper, we extend the multiple group framework with a rate-adaptation protocol called Receiver-driven Layered Multicast, or RLM. Under RLM, multicast receivers adapt to both the static heterogeneity of link bandwidths