Next generation wireless systems and networks phần 8 docx

... various wireless applications, such as wireless regional area networks (WRANs), wireless metropolitan area networks (WMANs), wireless local area networks (WLANs), and wireless personal area networks ... U-NII band or the ISM band, it is called a Licensed Band Cognitive Radio. One of theLicensed Band Cognitive Radio-like systems is the IEEE 80 2.15 Task group 2 [80 2] speciﬁcation.On the other hand, ... the TV bands.The IEEE P802.22 project, “Standard for Wireless Regional Area Networks (WRAN)-Speciﬁcrequirements-Part 22: Cognitive Wireless RAN MAC and PHY Speciﬁcations: Policies and proceduresfor...

Next generation wireless systems and networks phần 2 pot

... (t)t+++= 8 8 8 8 RA,B (t)t 8 8 RA3,B3 (t)t 8 8 Absolutely nosidelobes!Figure 2.34 Cross-correlation function of an orthogonal complementary code with its element codelength being 16 and ... errors, and so on.developed in North America in the 1 980 s by AT&T’s Bell Laboratories. It operates in 80 0–900 MHzfrequency band and is one of numerous ﬁrst generation (1G) mobile cellular standards. ... CDMA systems but in radar systems. Later, Suehiro [2 08, 209] extended the concept to the generation of the OCC families whose ACF is zero for all even and odd shifts except the zero shiftand...

Next generation wireless systems and networks phần 3 potx

... mobile cellular systems. The third generation wireless is a term used to describe next generation mobile services, which provide better quality voice and high-speed Internet and multimedia services. ... channels more efﬁciently, D-AMPS (IS-136)employs the same 30 kHz channel spacing and frequency bands (82 4 84 9 and 86 9 89 4 MHz) as AMPS. By using TDMA instead of FDMA, IS-136 increasesthe number ... success hasspread to all parts of the world and over 80 GSM networks are now operational. Itoperates at 900- and 180 0 MHz in many parts of Europe and in England. Works at1900 MHz in some parts of...

Next generation wireless systems and networks phần 4 potx

... PCS networks. QPSK modulation isused to achieve 38. 4 kbps through 12 28. 8 kbps data rates (with the exception of 921.6 kbps), 8PSKfor 921.6 kbps and 184 3.2 kbps and 16QAM for 12 28. 8 kbps and ... rate(kb/s) 38. 4 76 .8 153.6 307.2 307.2 614.4 614.4 921.6 12 28. 8 12 28. 8 184 3.2 2457.6Modem QPSK QPSK QPSK QPSK QPSK QPSK QPSK 8PSK QPSK 16QAM 8PSK 16QAMEncoded 1024/ 1024/ 1024/ 1024/ 20 48/ 1024/ 20 48/ ... QPSK and 8- PSKReceiver Rake Joint DetectionRake (MobileStation)Joint DetectionRake (MobileStation)Chip Rate 3 .84 Mcps 3 .84 Mcps 1. 28 McpsSpreading Factor 4–256 1, 2, 4, 8, 16 1, 2, 4, 8, ...

Next generation wireless systems and networks phần 5 ppt

... telecommunication services: PSTN and IP networks. Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani 2006 John Wiley & Sons, Ltd234 WIRELESS DATA NETWORKS • Up to eight ... WPAN [ 482 ].The 80 2.15 standards permit WPANs to connect to 80 2.11 WLANs or 80 2 (wired) LANs, ifdesired [ 482 ].4.4.1 IEEE 80 2.15.3a StandardThe IEEE 80 2.15.3 standard deﬁnes low cost and low ... Mbps, and in the late 1990s the Gigabit Ethernet was standardized Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani 2006 John Wiley & Sons, Ltd240 ALL-IP WIRELESS...

Next generation wireless systems and networks phần 6 pot

... time, and every active user is assigned a particular time slot in the Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani 2006 John Wiley & Sons, Ltd2 78 MULTIPLE ... inﬁnite, and 262 ARCHITECTURE OF B3G WIRELESS SYSTEMS Reconﬁgurability and spectrum issues are changing the way wireless networks are planned. Plannersare mindful of QoS constraints and the need ... addressthe issues on the implementation and performance evaluation of a next- generation CDMA system. 286 MULTIPLE ACCESS TECHNOLOGIES FOR B3G WIRELESS lower bit rate, and using these substreams to modulate...

Next generation wireless systems and networks phần 7 ppt

... channel, and g(τ) is the com-bined effect of the transmitter pulse-shaping and the receiver matched-ﬁltering. Thus, the received Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen ... Ltd2 98 MULTIPLE ACCESS TECHNOLOGIES FOR B3G WIRELESS Figure 7. 18 Various IEEE 80 2 standards, in which UWB technologies have been covered in IEEE 80 2.15.3a standard for WPAN applications. wireless ... applications. wireless metropolitan area networks (WMANs) as IEEE 80 2.16 standards, WPANs as IEEE 80 2.15standards, and so on. It is noted that IEEE 80 2.15.4.a is emerging as the standard for low-data-ratetransmission.The...

Next generation wireless systems and networks phần 9 pps

... kHzSamplingfrequency1.92 MHz(1/2 ×3 .84 MHz)3 .84 MHz 7. 68 MHz(2 × 3 .84 MHz)15.36 MHz(4 × 3 .84 MHz)23.04 MHz(6 × 3 .84 MHz)30.72 MHz (8 × 3 .84 MHz)FFT size 1 28 256 512 1024 1536 20 48 Number ofoccupiedsubcarriersa76 ... subsection in the sequel. Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani 2006 John Wiley & Sons, Ltd432 ORTHOGONAL COMPLEMENTARY CODES (PG = 8 ∼ 512)−−++++−−+−−+−++−++++−−−−−+−++−+−, ... nTc)dt(C.3) Next Generation Wireless Systems and Networks Hsiao-Hwa Chen and Mohsen Guizani 2006 John Wiley & Sons, Ltd416 E-UTRAN: 3GPP’S EVOLUTIONAL PATH TO 4GOn the other hand, the mapping...

Next generation wireless systems and networks phần 10 pot

... bluetooth, 383 80 2.15.3, 303 80 2.15.3a, 270, 297, 2 98, 303, 382 , 383 80 2.15.3a standard, 2 98 802.15.3a wireless UWB standard, 384 80 2.15.4, 2 98, 382 80 2.15.4a, 270, 2 98 802.16, 9, 2 98, 389 , 391 80 2.16 ... 391 80 2.16 standard, 2 98, 392 80 2.16e standard, 389 80 2.16h, 15, 389 80 2. 18, 366 80 2.19, 370 80 2.20, 249, 2 98 802.22, 15, 2 98, 389 , 391, 392, 393 80 2.22 standard, 392 80 2.22 working group, 389 , 392 80 2.22 ... Electrical and ElectronicsEngineers (IEEE) (continued ) 80 2.11h standard, 366, 385 , 387 80 2.11k, 387 80 2.11x WLAN, 10 80 2.15, 9, 2 98, 370 80 2.15 standard, 297, 2 98 802.15.1, 2 98, 382 80 2.15.1...

next generation wireless systems and networks

... States 202 ,88 8,307 296,2 08, 476 68. 5 21.6China 103,000,000 1, 282 ,1 98, 289 7.9 11.0Japan 78, 050,000 1 28, 137, 485 60.9 8. 3Germany 47,127,725 82 ,726, 188 57.0 5.0India 39,200,000 1,094 ,87 0,677 3.6 ... Kingdom 35 ,80 7,929 59 ,88 9,407 59 .8 3 .8 South Korea 31,600,000 49,929,293 63.3 3.4Italy 28, 610,000 58, 6 08, 565 48. 8 3.0France 25,614 ,89 9 60,619,7 18 42.3 2.7Brazil 22,320,000 181 ,82 3,645 12.3 ... urban 83 0 2. 488 411Washington State, urban 905–925 20/2. 488 51.1/411Colorado, ﬂat rural 185 0–1990 20 51.1Philadelphia, PA, semirural 902–9 28, 185 0–1990 20 51.1Indoor Wireless LAN 580 0 500 508...

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