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multipath environments

EM Based Multiuser Detection in Fast Fading Multipath Environments

EM Based Multiuser Detection in Fast Fading Multipath Environments

... We address the problem of multiuser detection in fast fading multipath environments for DS-CDMA systems. In fast fading scenarios, temporal variations of the channel cause significant performance ...

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DOA Estimation of UHF RFID Tags in Multipath Environments

DOA Estimation of UHF RFID Tags in Multipath Environments

... (MLE) generally performs well even in multipath environments. Unfortunately MLE requires prohibitively high computation loads. In the non-parametric category, the Akaike information criterion (AIC) and the ...

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Angle-of-Arrival Estimation in Multipath Environments Using Sliding Antenna Arrays

Angle-of-Arrival Estimation in Multipath Environments Using Sliding Antenna Arrays

... One of the most extensively used methods for implementing Angle-of-Arrival estimation uses antenna arrays and the Multiple Signal Classification (MUSIC) algorithm [2], which exploits the eigen- structure properties of the ...

5

Channel Tracking Using Particle Filtering in Unresolvable Multipath Environments

Channel Tracking Using Particle Filtering in Unresolvable Multipath Environments

... tracking. During the acquisition phase, the number and the delays of the most significant paths are determined. These delays are estimated within one half chip from the exact de- lays. Then, the tracking module refines ...

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Hybrid Real Time and Preset Processing for Indoor Radio Geo Location in Dense Multipath Environments

Hybrid Real Time and Preset Processing for Indoor Radio Geo Location in Dense Multipath Environments

... The existence of various geo-location applications and their accuracy requirements enhance the necessities for suitable processing techniques to solve the indoor geo-location problems. Since, Impulse Radio Ultra-Wideband ...

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Particle Swarm Optimization Based Noncoherent Detector for Ultra-Wideband Radio in Intensive Multipath Environments

Particle Swarm Optimization Based Noncoherent Detector for Ultra-Wideband Radio in Intensive Multipath Environments

... UWB has intensive military and commercial applications; however, the practical receiver designing still remains a chal- lenging task due to the intensive multipath propagation of UWB channels, which greatly ...

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A complexity-performance-balanced multiuser detector based on artificial fish swarm algorithm for DS-UWB systems in the AWGN and multipath environments

A complexity-performance-balanced multiuser detector based on artificial fish swarm algorithm for DS-UWB systems in the AWGN and multipath environments

... bandwidth of UWB into many sub-bands, while the latter is a baseband system modulating its input information symbols with nanosecond pulses, which is different from conventional code division multiple access (CDMA) ...

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Optimized tracking for cooperative sensor systems in multipath environments

Optimized tracking for cooperative sensor systems in multipath environments

... Future work should start by adopting algorithmic parameters using measurement data from test scenarios. Increased detection accuracy of a sudden change between a direct signal and a multipath signal should be ...

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An improved k NN algorithm for localization in multipath environments

An improved k NN algorithm for localization in multipath environments

... In this paper, we use the RF phase to evaluate the similar- ity of the reference tags in an improved k-NN algorithm for range estimation. And the location is estimated by lin- ear least squares with a new reference ...

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Robust Techniques for Accurate Indoor Localization in Hazardous Environments

Robust Techniques for Accurate Indoor Localization in Hazardous Environments

... indoor environments have rendered many traditional positioning methods inept to yield satisfactory ...hazardous multipath environments through three versatile super resolution techniques: time do- ...

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Performance of tcp and udp protocols for secure multipath aco  communication in manet

Performance of tcp and udp protocols for secure multipath aco communication in manet

... normal multipath routing and attacker is attack on this network, by that the whole paths are jammed by flooding packets and security scheme is completely provides the secure communication by removes the flooding ...

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Title : Hierarchical Load Balanced Multipath Routing Protocol for Wireless Sensor NetworksAuthor (s) : C. R. Rathish, Dr.A.Rajaram

Title : Hierarchical Load Balanced Multipath Routing Protocol for Wireless Sensor NetworksAuthor (s) : C. R. Rathish, Dr.A.Rajaram

... Sensors are the devices that capture the real-world phenomena and convert their captured information into the digital format which can be saved, transmitted, and processed [1]. Sensors will give an enormous societal ...

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Multipath selection for resilient network routing

Multipath selection for resilient network routing

... TCP Multipath [1] to develop functionality that will enable existing TCP sessions to use multiple paths ...deploy multipath capability in the existing net- working infrastructure, without making any ...

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Improving Signal Strength in Wireless Mobile Communication using Diversity Combining Technique over Rayleigh Fading Channels

Improving Signal Strength in Wireless Mobile Communication using Diversity Combining Technique over Rayleigh Fading Channels

... than multipath fading arises, to mitigate multipath fading in wireless channel transmitter power control method is used, in this method transmitter on other side of the link preprocessed the signal ...

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A STUDY ON AD HOC NETWORKS FOR EFFICIENT MULTIPATH ROUTING SURVEY

A STUDY ON AD HOC NETWORKS FOR EFFICIENT MULTIPATH ROUTING SURVEY

... A mobile ad hoc network (MANET) is a collection of mobile nodes with no pre-established infrastructure forming a temporary network. Each device in a MANET is free to move independently in any direction, and will ...

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CYBER SECURITY FOR CYBER PHYSCIAL SYSTEMS: A TRUST BASED APPROACH

CYBER SECURITY FOR CYBER PHYSCIAL SYSTEMS: A TRUST BASED APPROACH

... consumptions are sensing, programming, and sleeping. For the research work sensing energy consumption, programming and also sleeping were not taken into consideration for subsequent studies. The consumption of idle ...

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Performance Betterments of Disjoint Paths in Designing an Efficient Multipath Routing in MANETs

Performance Betterments of Disjoint Paths in Designing an Efficient Multipath Routing in MANETs

... Node-disjoint paths have many applications in multipath routing. AODVM a multipath routing protocol is used to find node-disjoint paths. Here in this protocol, intermediate nodes are not permitted to send ...

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Adaptive Multipath Multimedia Streaming Architecture for Mobile Networks with Proactive Buffering Using Mobile Proxies

Adaptive Multipath Multimedia Streaming Architecture for Mobile Networks with Proactive Buffering Using Mobile Proxies

... mechanisms, multipath trans- port is highly suitable for multimedia streaming in wireless ...In multipath transport, multiple paths are used to transport data from one end to the ...other. Multipath ...

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Energy Efficient Routing Based Load Balancing Approach for Wireless Sensor Networks

Energy Efficient Routing Based Load Balancing Approach for Wireless Sensor Networks

... Energy conservation is critical in Wireless Sensor Networks. Replacing or recharging batteries is not an option for sensors deployed in hostile environments. Generally, communication electronics in the sensor ...

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Implementation of High Speed MDC FFT/IFFT Processor for MIMO-OFDM Systems

Implementation of High Speed MDC FFT/IFFT Processor for MIMO-OFDM Systems

... of multipath delay commutator (MDC) and memory scheduling are the basic concepts used to implement fast Fourier transform (FFT) processors with variable ...

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