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The emergence of Multipath TCP (MPTCP) technology offers an opportunity for network operators to leverage on fixed and mobile access networks to enhance user's Internet experience. The question is how MPTCP could have impacted web browsing quality of experience (QoE). This paper covers an experimental evaluation to analyze the QoE performance of Hypertext Transfer Protocol (HTTP) traffic over MPTCP...
Downlink Multi-User MIMO Channel State Information Reference Signal (CSI-RS) transmission scheme is proposed. It is based on an OFDM system and deployment of a large number of antennas at LTE Evolved NodeB transmitter (eNB). The developed scheme efficiently utilizes the transmitted power distribution by the adaptive elimination of the coverage zones where no users are to be served. Hence, more directed...
Fiber-Wireless Access Networks (Fi-Wi) shows a promising future owing to the cost effective, high bandwidth and ubiquity features. Previous studies have addressed network layers to provide high data rates and lower delays to enhance the overall network quality without taking into consideration the end user QoS. In order to provide high QoS, transport layer services needs investigation as they work...
Network coding considers as a major ability to achieve higher throughput. Toward that goal, this article investigates and analyzes soft decision scheme of network coding (SDS-NC) at relay node to exchange encoding BPSK packets between two nodes with help of the relay over an additive white Gaussian noise (AWGN) channel by considering the maximum-likelihood (ML) detection metric at the relay. We also...
Reliable event delivery at MAC, routing and transport level has been explored to great extent to provide improved throughput and route resilience in wireless sensor networks. The evolution of wireless sensor and actor networks (WSAN) have posed an extra constraint in terms of reliable event response. The reliable response is defined as the the in time event delivery from sensor nodes to actors and...
There is a promising development in wireless communications technology which indicates that road accidents could be significantly reduced if vehicles were allowed to communicate with each other. By regularly exchanging their current position, velocity, etc., vehicles could predict an upcoming accident and alert the human drivers in time or proactively take precautionary actions to avoid the accident...
On-board TCP (obTCP) has been shown to provide significant downloading performance improvement over TCP snoop in moving networks. In this paper, we look into the support for uploading performance of TCP. We believe that this aspect is critical for the general deployment of Internet applications on moving networks. We provide a mathematical model to measure uploading performance of TCP and validate...
The second in the Niagara series of processors (Niagara2) from Sun Microsystems is based on the power-efficient chip multi-threading (CMT) architecture optimized for Space, Watts (Power), and Performance (SWaP) [SWap Rating = Performance/(Space * Power) ]. It doubles the throughput performance and performance/watt, and provides >10times improvement in floating point throughput performance as compared...
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