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Fette B.A. (Ed) — Cognitive Radio Technology
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Íàçâàíèå: Cognitive Radio TechnologyÀâòîð: Fette B.A. (Ed) Àííîòàöèÿ: Cognitive radio technology is a smarter, faster, and more efficient way to transmit information to and from fixed, mobile, other wireless communication devices. Cognitive radio builds upon software-defined radio technology. A cognitive radio system is 'aware' of its operating environment and automatically adjusts itself to maintain desired communications-it's like having a trained operator 'inside' the radio making constant adjustments for maximum performance. Operating frequency, power output, antenna orientation/beamwidth, modulation, and transmitter bandwidth are just a few of the operating parameters that can automatically be adjusted "on the fly" in a cognitive radio system.
ßçûê: Ðóáðèêà: Òåõíîëîãèÿ /Ñòàòóñ ïðåäìåòíîãî óêàçàòåëÿ: Ãîòîâ óêàçàòåëü ñ íîìåðàìè ñòðàíèö ed2k: ed2k stats Ãîä èçäàíèÿ: 2006Êîëè÷åñòâî ñòðàíèö: 656Äîáàâëåíà â êàòàëîã: 11.12.2007Îïåðàöèè: Ïîëîæèòü íà ïîëêó |
Ñêîïèðîâàòü ññûëêó äëÿ ôîðóìà | Ñêîïèðîâàòü ID
Ïðåäìåòíûé óêàçàòåëü
Spectrum access, current techniques 33—39 Spectrum access, DFS 42 Spectrum access, dynamic 43—46 48 62—69 Spectrum access, non-interference methods 150 Spectrum access, opportunistic 39—41 Spectrum access, required financial transactions 591 Spectrum awareness 135—136 148—153 157 Spectrum awareness, channel awareness and MIMO signaling 174—176 Spectrum awareness, cognitive radio, role 165—166 Spectrum awareness, components 175 Spectrum awareness, creation 168—174 Spectrum awareness, creation, distributed sensing and operation 173—174 Spectrum awareness, creation, link rendezvous 173 Spectrum awareness, creation, potential interference analysis 170—173 Spectrum awareness, creation, reporting 168—169 Spectrum awareness, creation, sensing 169—170 Spectrum awareness, hidden node problem 136 Spectrum awareness, implications for cognitive radio hardware 180—182 Spectrum awareness, interference avoidance problem 163—165 Spectrum awareness, networking 176—178 Spectrum awareness, overlay and underlay techniques 178—180 Spectrum awareness, propagation energy loss 183—184 Spectrum awareness, spectral footprint minimization 166—168 Spectrum awareness, subleasing 144 145 Spectrum efficiency 23 25 64 166—168 Spectrum efficiency, bits per unit area 167 Spectrum efficiency, metrics 166 Spectrum management 17—22 29 66—67 67—68 148 163—164 168—169 191 194 214 Spectrum management, and subleasing methods 21—22 Spectrum management, commercial opportunities 212—213 Spectrum management, dynamic policy 56—58 Spectrum management, interference management 60—61 Spectrum management, noise aggregation 19—21 Spectrum management, priority access 22 Spectrum management, spectrum access 33—42 Spectrum management, unlicensed 18—19 Spectrum occupancy 135—136 149—150 152 Spectrum policy 57—58 60 65 66 68 138—140 187—189 200 Spectrum Policy Task Force (SPTF) 23 60 66 67 144 179 188 Spectrum policy, management 188—189 Spectrum policy, system requirements 189 Spectrum resources 191 195 198 210 213 406 Spectrum resources, relative scarcity assessment 175 Spectrum sensing 135—136 148 169—170 341 Spectrum subleasing 139 144 145 Speech algorithms, CR xxiii—xxiv Speech and language processing 315 Speech and language processing, background noise suppression 327—328 Speech and language processing, language identification 323—325 Speech and language processing, machine translation 326—327 Speech and language processing, noise characterization 329—330 Speech and language processing, speaker recognition 315—323 Speech and language processing, speaker stress characterization 329 Speech and language processing, speech coding 328 Speech and language processing, speech-to-text (STT) conversion 325—326 Speech and language processing, text-to-speech (TTS)conversion 325 Speech coders 317 327 328 Speech-understanding technology xxiii—xxiv Stand-alone radios 588—589 Standard interference function model 521—524 Stationary distribution 525 526 527 Sublattice 556 Sun Microsystems 109 Supermodular games 544 554 557—558 Supermodular games, example 558 Supermodular games, functions 556 Supermodular games, increasing differences 557 Supermodular games, mathematical preliminaries 554—558 Supermodular games, mathematical preliminaries, join and meet 555 Supermodular games, mathematical preliminaries, lattice 555 Supermodular games, mathematical preliminaries, partially ordered sets 554—555 Supermodular games, properties 558—563 Supermodular games, properties, adaptive dynamic process 561—562 Supermodular games, properties, convergence 561 Supermodular games, properties, desirability 561 Supermodular games, properties, fixed points in 559—560 Supermodular games, properties, random sampling 562 Supermodular games, properties, stability 562—563 Supervised learning 260 380—381 Symbolic knowledge representation 371 Symbolic knowledge representation, benefits 372 System control and DomainManager 104—105 System performance analysis 593—594 Tarski's fixed point theorem 559—560 Tarski's fixed point theorem, visualization for supermodular games 560 Telecommunications Act 1996 36 Telecommunications policy, basic geometrics 53—56 Telecommunications policy, dynamic policy 56—58 Telecommunications policy, interference avoidance 60—61 Telecommunications policy, overarching impact 61 Telecommunications policy, policy-enabled devices 58—60 Telecommunications policy, technology impact, on regulation 53 Telephony services 590 TellMe® Networks xxi—xxii Temporal difference 389—390 Temporal knowledge 378—379 TestableObject 99 Text-to-speech (TTS) conversion 325 Time difference of arrival (TDoA) approach 280—284 Time difference of arrival (TDoA) approach, common coordinate system 283—284 Time difference of arrival (TDoA) approach, curve 281—283 Time difference of arrival (TDoA) approach, source transmitter, position 284 Time Division Multiple Access (TDMA) 10 131 294 492 Time of arrival (ToA) approach 279 Time-based approaches, DME 279 280 Time-based approaches, estimation 285—286 Time-based approaches, LORAN 285 Time-based approaches, round-trip timing 279—280 Time-based approaches, TDoA approach see Time difference of arrival approach Time-based approaches, ToA approach see Time of arrival approach Time-based approaches, TV broadcast 285 Timeline 156—157 Timeline, decisions, directions, and standards 157 Timeline, new products manufacturing 157—158 Timeline, roots of SDR 4—5 Toffler Associates 65—66 Tokens 201 467 Tokens, user authentication 318 Totally ordered set 555 556 Training sequence length, adaptation 423—425 traits 233 244 245 Traits, user authentication 319 Transition probability matrix 525—526 Transmission Control Protocol (TCP) 171 261 300 303 Transmitter power 221 229—230 Transparent interface 330 Transportation and telecommunication commonalities 340—341 Trunked radio 21 Two-way radio communication, challenges 413—414 Ultra-wideband (UWB) radio 179 180 590 UML model 197 414 416 UML model, SDR Forum 437 460 488—490 Unilateral deviation 538—539 543—544 550 Unintentional radiator 38 Unlicensed devices 33 50 52 55 57—58 Unlicensed devices, operational envelopes 37—38 Unsupervised learning 242 260 261 381 Upper semicontinuous function 559 560 US Department of Commerce (DoC) 68—69 271 US Department of Commerce (DoC), NTIA 48 50—51 62 146 156 188 US telecommunications policy 49—52 US telecommunications policy, Federal Communications Commission 50 US telecommunications policy, National Telecommunication and Information Administration 50—51 US telecommunications policy, State Department 51 US telecommunications policy, technology, pace with 51—52 user authentication 155—156 158 318—321 332 User authentication, biometric sensors, applications 322—323 User authentication, biometric sensors, processing, with security architecture 321—322 User knowledge, in architecture 452—453 Utility-based agent 141 Utopian point 231 260 Velcro radio 484 506 Very high frequency omnidirectional ranging (VHF VOR) 270 287 Very high-speed integrated circuit (VHSIC) VHDL 13 86 142 Video coder 11 Video link 245 251 Virtual data integration 428 Vision and speech perception, combination xxiii—xxiv Vision-processing algorithms xxii—xxiii Vocoder (voice coder) 5 11 79 82 155 317n 585 Voice 80—81 313 316 319 325 448 537 Voice biometrics 317—318 voice communication 80 327 328 Voice over Internet Protocol (VoIP) 299 590 Voltage standing wave radio (VSWR) 10 76 VT-CWT cognitive engine 219 240 Wake epoch 460 461 466 Waveform 5—6 7 12 150—151 Waveform control 103 Weak improvement cycle 550 Web Ontology Language (OWL) 59 140 331 373 409—411 Web Ontology Language (OWL), OWL Full 409 410 411 430 Web Ontology Language (OWL), OWL Lite 409 410—411 430 Web Ontology Language (OWL), OWL-DL 409 410 411 430 Web Ontology Language (OWL), OWL-QL 411—412 422—423 Weight values and objective functions 263 Weighted potential game 545—546 WiFi protocol 18 270 426 WiFi protocol, hierarchy 417 WiMAX waveforms, properties 20 Wireless local area network (WLAN) 20 37 39 42 270 288 355 503 588. Wireless network and service offered, through infrastructure 587—593 Wireless personal area network (WPAN) 20 588 Wireless system generic algorithm (WSGA) 240 241 242 243 245 264 Wireless system generic algorithm (WSGA), example 249—252 Wireless system generic algorithm (WSGA), optimization 258—259 Wireless Telegraphy Act 1998 36 Wireless World Research Forum (WWRF) 355 503 World Radiocommunication Conferences (WRCs) 188 Writable parameters see Knobs WxWidgets 111 XML 15 59n 103 106 139 409 419 XML Topic Maps (XTM) 409 Yttrium — iron — garnet (YIG) circulators 78 Zero-sum game 535n ZigBee 588 ZigBee, waveforms, properties 20 “Radar” O'Reilly 1n “telematics”™ 588
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