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Multimedia streaming between smart devices has come into general use in Wi-Fi networks, for example, streaming a video content in mobile phone to smart TV. However, drastic and frequent changes of link quality caused by wireless channel characteristics such as multipath fading and Doppler effect leads the network throughput unstable. In order to support seamless play even in unstable wireless link,...
Multimedia streaming between smart devices has come into general use in Wi-Fi networks, for example, streaming a video content in mobile phone to smart TV. However, drastic and frequent changes of link quality caused by wireless channel characteristics such as multipath fading and doppler effect leads the network throughput unstable. In order to support seamless play even in unstable wireless link,...
To achieve efficient adaptive Transmission Opportunity (TXOP) and real-time scheduling for high system saturation throughput, we suggest a novel Real-time Throughput Optimization Protocol (RTOP) based on Dynamic Aggregation and Fragmentation (DAF) scheme. DAF scheme aims mainly at best TXOP usage and minimizing retransmissions by adjusting the frame and fragment size dynamically. RTOP is designed...
Transmission Opportunity (TXOP) which is specified in the IEEE 802.11e enables a Wi-Fi station to transmit multiple frames consecutively. In this paper, we propose an adaptive transmission scheme based on the Dynamic Aggregation and Fragmentation (DAF) algorithm. With real-time scheduling and adaptive TXOP allocation being the main focus of the suggested adaptive transmission scheme, optimum transmission...
In this paper, we propose MWTP (Multi-hop Waiting Time Priority) scheduler to guarantee proportional delay differentiation in a multi-hop wireless network with contention- based MAC protocol. The existing single-hop delay differentiation schedulers can not differentiate the contention delay suffered at multi-hop links, and whole delay differentiation accuracy is destroyed in the multi-hop wireless...
In this paper, we present a concept and the related performance analysis for a wireless relay system which counts asymmetric relay path as one of the possible transmission paths. Most approaches of current literature to analyze relay system do not take into account the asymmetric relay path between uplink and downlink transmission. Asymmetric relaying may not be easy to apply to wireless networks...
In recent years, numerous studies have been attempted to solve problems of efficient bandwidth utilization and supporting QoS(Quality of Service) of EPON(Ethernet Passive Optical Network) system. This paper examines advanced scheduling algorithm which improves bandwidth utilization and supports QoS for different service classes of EPON system. This algorithm improves bandwidth utilization by diminishing...
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