Radio frequency spectrum is a scarce and critical natural resource that is utilized for
many services including surveillance, navigation, communication, and broadcast-
ing. Recent years have seen tremendous growth in the use of spectrum especially by
commercial cellular operators. Ubiquitous use of smartphones and tablets is one
of the reasons behind an all-time high utilization of spectrum. As a result, cellular
operators are experiencing a shortage of radio spectrum to meet bandwidth
demands of users. On the other hand, spectrum measurements have shown that
much spectrum not held by cellular operators is underutilized even in dense urban
areas. This has motivated shared access to spectrum by secondary systems with no
or minimal impact on incumbent systems. Spectrum sharing is a promising
approach to solve the problem of spectrum congestion as it allows cellular operators
access to more spectrum in order to satisfy the ever-growing bandwidth demands of
commercial users.
资源简介:Radio frequency Spectrum is a scarce and critical natural resource that is utilized for many services including surveillance, navigation, communication, and broadcast- ing. Recent years have seen tremendous growth in the use of Spectrum esp...
上传时间: 2020-06-01
上传用户:shancjb
资源简介:Rapid growth of wireless communication services in recent decades has created a huge demand of radio Spectrum. Spectrum scarcity and utilization inefficiency limit the development of wireless networks. Cognitive radio is a promising tech- n...
上传时间: 2020-05-31
上传用户:shancjb
资源简介:RECOMMENDATION ITU-R M.1653*,** Operational and deployment requirements for wireless access systems including radio local area networks in the mobile service to facilitate Sharing Between these systems and systems in the Earth exploration-...
上传时间: 2016-10-21
上传用户:miaochun888
资源简介:This thesis is about wireless communication in shared radio Spectrum. Its origin and motivation is ideally represented by the two quotations from above. In this thesis, the support of Quality-of-Service (QoS) in cognitive radio networks is ...
上传时间: 2020-05-27
上传用户:shancjb
资源简介:This book was born from the perception that there is much more to Spectrum use and Sharing than one sees reflected in publications, whether academic, commercial or political. the former – in good research style – tend towards reductionism...
上传时间: 2020-06-01
上传用户:shancjb
资源简介:Abstract. The main aim of this research is to improve communication Between student and teacher by using the developing mobile information technologies. Implementing such technologies in education may help to develop learning environments t...
上传时间: 2017-04-10
上传用户:WMC_geophy
资源简介:Cognitive radios have become a vital solution that allows Sharing of the scarce frequency Spectrum available for wireless systems. It has been demonstrated that it can be used for future wireless systems as well as integrated into 4G/5G wir...
上传时间: 2020-06-01
上传用户:shancjb
资源简介:The radio Spectrum is one of the most precious resources which must be managed to ensure efficient access for the wireless communication services which use it. The allocation and management of Spectrum are administered by the regulatory aut...
上传时间: 2020-06-01
上传用户:shancjb
资源简介:This application report discusses the design of non-invasive optical plethysmographyalso called as pulsoximeter using the MSP430FG437 Microcontroller (MCU). Thepulsoximeter consists of a peripheral probe combined with the MCU displaying the...
上传时间: 2013-10-27
上传用户:黑漆漆
资源简介:example of communication Between the Cerebellum 16f877 pic board and the CMUcam
上传时间: 2014-07-29
上传用户:gtf1207
资源简介:We intend to develop a wifi enabled p2p file Sharing system on a linux platform using jxta and java. The purpose is to build a system that can be ported to an embedded device at a later stage and be used for p2p file Sharing using the 802.1...
上传时间: 2015-01-20
上传用户:Shaikh
资源简介:a zipped example of communication Between the Cerebellum 16f877 pic board and the CMUcam. There are plenty of comments in the code.
上传时间: 2013-12-16
上传用户:1159797854
资源简介:Small utility which calculates the difference in hours and seconds Between a starting time and finish time. Useful for calculating payroll hours, overtime, etc. with C source code. Freeware.
上传时间: 2015-02-07
上传用户:jing911003
资源简介:A peer-to-peer file Sharing system under UNIX environment.
上传时间: 2015-02-13
上传用户:wff
资源简介:The EZ320 utility demonstrates the communication program Between host PC and the MR320.
上传时间: 2013-12-10
上传用户:变形金刚
资源简介:This model simulates a CDMA2000 1xRTT Forward link (Between Base Station and Mobile Station). In particular, it simulates the Radio Configuration 3 of a Forward Fundamental channel. The block CDMA2k: Initial settings allows you to set diffe...
上传时间: 2015-03-28
上传用户:13215175592
资源简介:This an adaptive receiver for a direct-sequence spread Spectrum (DS-SS) system over an AWGN channel. The adaptive receiver block is modified from the LMS adaptive filter block in DSP Blockset. For DS-SS signal reception, the adaptive filter...
上传时间: 2014-01-16
上传用户:D&L37
资源简介:A language monitor provides a full duplex communications path Between the print spooler and bi-directional printers that are capable of providing software-accessible status information and adds printer control information, such as commands ...
上传时间: 2015-03-29
上传用户:comua
资源简介:Shows how to use all list selection modes, using a list selection listener that s shared Between a table and list.
上传时间: 2015-05-04
上传用户:jichenxi0730
资源简介:This a script for working with short TCP files with several source nodes, Sharing a single bottleneck link with a RED buffer
上传时间: 2013-12-15
上传用户:Miyuki
资源简介:This a script for working with short TCP files with several source nodes, Sharing a single bottleneck link. It is used to show how with proper choice of CIR, marking decreases losses of vulnerable packets (syns etc).
上传时间: 2015-05-11
上传用户:aa17807091
资源简介:OFDM信号及其频谱 OFDM signal and its Spectrum ( Guard Interval insertion )
上传时间: 2015-05-17
上传用户:wang5829
资源简介:This structure defines the interface Between the low-level tty driver and the tty routines. The following routines can be defined unless noted otherwise, they are optional, and can be filled in with a null pointer.
上传时间: 2015-05-29
上传用户:yyyyyyyyyy
资源简介:the parallel code for nbody force Between particles.
上传时间: 2013-11-28
上传用户:lwwhust
资源简介:Mining Association Rules Between Sets of Items in Large Databases,数据挖掘ERP,Apriori解释专用。
上传时间: 2015-06-10
上传用户:gtf1207
资源简介:a non-Sharing smart pointer class that can be used with STL containers such as std::map, vector, list, set, and deque. The smart pointer has an assignment operator and greater than operator that call the target object s operator.
上传时间: 2015-06-15
上传用户:Late_Li
资源简介:Describe the differences Between the Java Swing to SWT. Give a complex example to explain how to transform the Swing codes to SWT code.
上传时间: 2013-12-30
上传用户:小草123
资源简介:RAKE receiver for direct-sequence spread Spectrum systems Simulink model of a simple direct-sequence spread Spectrum system with RAKE reception
上传时间: 2014-01-05
上传用户:lunshaomo
资源简介:Set of tools to perform transformations Between projection, ellipsoidal and cartesian coordinates in either direction.
上传时间: 2015-07-22
上传用户:米卡
资源简介:Continuous wave Radars and pulsed Radars are discussed.Resolving range and Doppler mbiguities is also discussed in detail.
上传时间: 2013-12-19
上传用户:haoxiyizhong