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In fire fighting having prompt and reliable tracking and communication in case of emergency is of paramount importance. We developed an integrated positioning, sensing and communication platform for tracking first responders in urban fire fighting. A Quality of Service (QoS) enabled TDMA MAC (QT-MAC) was designed to provide a low latency and high reliability service for critical data transfer, as...
The next generation cellular wireless network is expected to provide a broad range of multimedia services, where the traffic asymmetry between uplink and downlink is significant. The code division multiple access system with time division duplex mode (TDD-CDMA), adopting unbalanced slot allocation between uplink and downlink, is a good solution for this traffic asymmetry. Here a QoS adaptive multimedia...
In this paper we present a proxy-level scheduler that can significantly improve QoS in heterogeneous wireless sensor networks while at the same time reducing the overall power consumption. Our scheduler is transparent to both applications and MAC in order to take the advantage of the standard off-the-shelf components. The proposed scheduling reduces collisions through a generalized TDMA implementation,...
The paper presents the concept of an adaptive neighbor list management mechanism that has as objective to control the quality of radio links over a wide range of offered traffic in wireless communication systems. An algorithm to adapt the size of the neighbor lists , and therefore their composition to fluctuations in traffic conditions is presented. The concepts of this algorithm are supported by...
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