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In this paper, we present AEROMAN (Architecture to Evaluate Routing Protocols for Multi-hop Ad-hoc Networks) which is designed and implemented for evaluation of routing protocols for multi-hop wireless networks. AEROMAN uses QOMET, a wireless link emulation tool, to compute parameters of wireless links, such as bandwidth, delay, packet loss rate, in contention-free conditions. In order to take into...
It is important to design on-chip crossbar by using appropriate traffic model. A kind of ??4-high-1-low?? traffic model is presented based on analysis of the character of unbalanced traffic among input port and output port of on-chip crossbar in 2D-Mesh NOC. Then it is analyzed how the performance of on-chip crossbar is impacted by ??4-high-1-low?? traffic model according to simulation. The impact...
While the CMOS analog circuits can be designed with the minimum-gate-length of the fabrication process in the alpha-power law MOSFET model, the length of a MOSFET gate has been chosen to be a larger scale than the minimum-gate-length in the conventional Shockleypsilas square model. In this paper, we describe a 6-b 100 MSPS CMOS current steering digital-to-analog converter (DAC) with the alpha-power...
Three applications in wireless networks where model-free stochastic learning is applicable, are discussed. The learning based optimization problems are formulated and simulation results are presented. Some open issues are also discussed.
This paper describes a new path computation model in Multi-protocol Label Switching (MPLS) and Generalized MPLS (GMPLS) networks. It introduces a path computation element (PCE), which is functionally separate from label switching routers (LSRs). The Path Computation Element (PCE) is an entity that is capable of computing a network path or route based on a network graph, and applying computational...
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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