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The IEEE WAVE protocol suite is providing communications services to applications in vehicular networks, by way of promising support for two protocol stacks: the Wave Short Message Protocol (WSMP) and IPv6. While WSMP is developed within the IEEE 1609 family of standards, the authors of this paper assert, that considerations for IPv6 operation for WAVE are less developed, and several issues are left...
In this paper, we have proposed link balancing scheme based on MIMO switching for the high speed wireless access system via dual-hop MIMO relays, and analyzed the capacity of different MIMO transmission mode. From these studies, we can conclude that the relayed MIMO system can support high speed group mobility and the link balancing method is able to enhance the transmission performance.
UWB has a very large bandwidth in a WPAN network, which is best used for HD-video applications. Meanwhile, MBWA is a WMAN option optimized for wireless-IP in a fast moving vehicle. In this paper, we propose a practical engineering scenario that harnesses simultaneously the distinctive feature of both UWB and MBWA. However, this in-proximity operation of the technologies will inevitably cause mutual...
Proposed technologies in current paper are intended to revolutionize the way in which the radio spectrum is being managed in current wireless networks. The proposed methods as ultimate efficient ways of handling spectrum can be seen as a bridge between current legacy systems (Beyond 3GPP LTE, WiMAX) and future cognitive radio networks. In this paper, we consider the 1ST WINNER European radio network...
IEEE P1900.4 is an emerging standard for optimized radio resource utilization where cognitive radio technologies are used for efficient spectrum utilization. In this paper, we design and implement a cognitive wireless network system based on open documents of IEEE P1900.4, and evaluate its performance using UDP streaming and HTTP download. Our experiments show interesting results that total network...
In this paper, we propose an adaptive pacing scheme at the link layer for IEEE 802.11 based multihop wireless networks. Our objective is to improve the performance of higher layer protocols without any modifications to them. Our adaptive pacing scheme estimates the four-hop transmission delay in the network path without incurring any additional overheads, and accordingly paces the packets to reduce...
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