wireless indoor communication systems
Recent developments in indoor optical wireless systems
... When using binary modulation, OOK is preferred for simplicity, even though it suffers some- what from multipath dispersion at high bit rates. For more sophisticated requirements, PPM is attractive, with 4-PPM offering ...
28
On indoor visible light communication systems with spatially random receiver
... munication systems and contributed to the knowledge base that would provide high data rate and slow growing communication needs, while bringing light to the people or be a ...the indoor VLC due to ...
26
A Survey of Recent Indoor Positioning Systems using Wireless Networks
... in wireless communication technology has encouraged many researchers to investigate developing models for positioning ...handheld wireless devices, coupled with the growing demand for these, has ...
8
A Review of Various Modulation Techniques for Indoor Optical Wireless Communication System
... of Indoor Optical Wireless Communications, for example, OOK, PPM, DPPM, DAPPM, DPIM, and some all the more, each with its own particular elements and ...Optical wireless communications is talked ...
5
Pentagonal Shaped Multi Wideband Antenna for Indoor Wireless Communication
... Federal Communications Commission (FCC) resolution on 14 th February 2002, recommended a 7.5 GHz bandwidth ranging from 3.1–10.6 GHz for ultrawideband (UWB) communication systems [1]. The UWB system has ...
6
Coherent query scheme for wireless backscatter communication systems with single tag
... One specific environment for the backscatter application is an indoor quasi-stationary channel. The channel can be modeled as a slow fading multipath environment. By as- suming the modulation bandwidth, which is ...
14
Analysing Radio Wave Propagation Model for Indoor Wireless Communication
... of wireless communication by radio wave communication which could provide continuous contact with ships sailing the English Channel ...the wireless communication system has been being ...
5
Comparative Simulation & Analysis of 2- PSK Spreading Transceiver
... personal communication system (PCS), which usually co-exist in the ...reliable wireless transmission system for indoor ...digital communication has been that of providing for the efficient ...
5
Digital pulse interval modulation for indoor optical wireless communication systems
... In this chapter, the basic properties of DPIM have been presented, and its performance on nondistorting AWGN channels has been analysed. DPIM has been shown to offer a number of advantages over OOK and PPM, making it a ...
269
Microstrip Patch Antennas for Broadband Indoor Wireless Systems
... Currently there is a boom in the development of personal communication service (PCS) devices as they are now deeply integrated into society. The PCS arena covers everything from cellular phones that incorporate ...
14
PERFORMANCE OF COOPERATIVE COMMUNICATION SYSTEM WITH NETWORK CODING USING SOFTWARE DEFINED RADIO
... Cooperative communication aims to reduce fading multipath ...cooperative communication systems without and with network coding were implemented on Software Defined Radio module (SDR) was ...
9
Analysis and Compensation of Power Amplifier Distortions in Wireless Communication Systems
... a communication device using its distinctive ...allow wireless devices to be identified by unique characteristics of their analog (radio) circuitry are referred to as physical-layer device ...
110
Circuits and Systems for Wireless Concurrent Communication
... Figure 6.9. The incident angle of beam 2 is swept from –90° to 90° while beam 1 arrives with a fixed incident angle of 0°. The EVM is measured at the two array output ports for beam 1 and beam 2, respectively. As shown ...
186
Review on Characteristics of Wireless Communication Systems
... mobile communication environment in the past few decades has increased the dependency on the wireless communication system with the consistent improvement in the quality of ...The wireless ...
6
Band-Notched Ultrawide Band Antenna For Indoor And Wearable Wireless Communication
... 1.3 OBJECTIVES The objectives of this project: To research the suitable substrate for the wearable antenna To research the suitable antenna type for wearable purpose To design, simulate,[r] ...
24
Quadrature Amplitude Modulation: From Basics to Adaptive Trellis Coded, Turbo Equalised and Space Time Coded OFDM, CDMA and MC CDMA Systems
... However, turbo codes often have a low coding rate and hence require considerable band- width expansion. Therefore, one of the objectives of turbo coding research is the design of bandwidth-efficient turbo codes. In order ...
273
Indoor robot path planning assisted by wireless network
... Indoor robot global path planning needs to complete the motion between the starting point and the target point according to robot position command transmitted by the wireless network. Behavior dynamics and ...
9
Research on the Control System of Indoor Cleaning Robots Based on LED Optical Communication
... of indoor clean robot, a design scheme of wireless communication technology based on white light LED was used to design the ...of indoor cleaning robot, the results of table 1 are shown in the ...
5
EFFICIENT SMART ANTENNA FOR 4G COMMUNICATIONS
... All the techniques mentioned in this paper are blind techniques, i.e. they or inverse matrices. All these algorithms apply the weight vectors after PN-processing to exploit the advantage of DS-CDMA over other ...
6
Development of Optical Interconnections Modules System Architectures and Its Backplane Technology for Terabit Systems
... The maximum bit rates are determined by numerous factors, including the signal modulation rate, the transmission bandwidth through the transmission media, and the response time of the optoelectronic devices. In a ...
11