mcgraw hill wireless data demystified phần 6 ppt

... Simultaneous voice and data Class B Separate voice and data Class C Data only TABLE 12 -6 Wireless Device Operating Modes GPRS network Uplink 3 6 kbps Downlink 16 24 kbps Wireless device Figure ... kbps 1 Up to 1000 8 2 Up to 2000 16 3 Up to 4000 32 4 Up to 8000 64 5 Up to 16, 000 128 6 Up to 32,000 2 56 7 Up to 64 ,000 512 8 Up to 128,000 1024 9 Up to 2 56, 000 2048 TABLE...

Ngày tải lên: 14/08/2014, 17:21

... bits 4 6 Mbps 8 16- QAM 6. 4 8 6 bits 8 12 Mbps 16 16- QAM 12.8 16 7 bits 16 36 Mbps 48 16- QAM 40 48 8 bits 64 54 Mbps 48 64 -QAM 40 48 8 bits 64 Chapter 2: Wireless Data Network Protocols tal assistants ... offers integrated wireless data capabilities. The flurry of enterprise wireless data activity here is in stark contrast to the wireless data world in...

Ngày tải lên: 14/08/2014, 17:21

... values of 5.5, 12 .6, 13.5, 16. 6, and 19.8 dB are necessary for the QPSK TCM, QPSK, and 16/ 32 /64 QAM TCM schemes. 497 CAZAC (1) CAZAC (2) CAZAC (9) CAZAC (10) Payload CRC Tail Preamble 160 T = 14.5 ... Residential Wireless Data Access Technology 21 CHAPTER 21 Copyright 2003 by The McGraw- Hill Companies, Inc. Click Here for Terms of Use. Chapter 19: Configuring Broadband Wirele...

Ngày tải lên: 14/08/2014, 17:21

... DESIGNING WIRELESS HIGH-SPEED DATA APPLICATIONS Chapter 6 Planning and Designing Wireless Data and Satellite Applications 155 Access Points 1 56 Client Devices 1 56 Planning and Designing a Wireless Data ... these future wireless data networks. 20. Configuring Wireless Data Mobile Networks. This chapter very briefly discusses the configuration of wireless data mob...

Ngày tải lên: 14/08/2014, 17:21

... state of high-speed wireless data standards. The following are standards for next-generation high-speed wireless data connectivity: Wireless data LANs Fixed broadband wireless data Universal Mobile ... include: IEEE 802. 16. 1, which defines the air interface for 10- to 66 -GHz systems. IEEE 802. 16. 2, which covers coexistence of broadband wireless data access systems. I...

Ngày tải lên: 14/08/2014, 17:21

... message Aggregate message Control plane Data plane Figure 6- 8 The gateway internal structure. Architecting Wireless Data Mobility Design 7 CHAPTER 7 Copyright 2003 by The McGraw- Hill Companies, Inc. Click ... multiple-AP wireless data LAN installation, one must take care to ensure that adequate radio coverage will be provided 161 202 Part 2: Planning and Designing Data A...

Ngày tải lên: 14/08/2014, 17:21

... and midsize companies Modulation Data Rate, Mbps C/N for 10 6 BER, dB QPSK (upstream) 10.24 13.5 16- QAM (downstream) 23 .68 16. 6 16- QAM (upstream) 20.48 17 .6 64-QAM (downstream) 35.52 22.8 TABLE ... 2 0 ⌺ 0 ⌺ 3 ⌺ 2 1 = 6 – 0 – 0 – 3 – 2 6 ⌺ y(n)x(n) Shift register Step 3 0 ⌺ 3 ⌺ 2 ⌺ 1 0 = 6 – 0 – 3 – 2 – 1 6 ⌺ y(n)x(n) Shift register Step 4 3 ⌺ 2 ⌺ 1 ⌺ 0 0 = 6 – 3 – 2 – 1...

Ngày tải lên: 14/08/2014, 17:21

... columns or tables and wireless data distribution to a database with schema differences. Rule-Based Wireless Data Sharing Allocating wireless data among users streamlines data flows and mini- mizes ... (Motorola transportation data (nationwide), DataTAC) support, in-building 9 .6 kbps wireless (limited) BellSouth Two-way paging, dispatch, 900 MHz (12.5 kHz) 4.8 kbps wirel...

Ngày tải lên: 14/08/2014, 17:21

... 16- 10 illustrates mapping of control and wireless data octets in the 64 B /65 B block. 4 Aligning the 64 B /65 B payload bytes with the SONET/SDH/OTN pay- load bytes simplifies parallel wireless data ... Octet 5 Octet 6 Octet 7 D1 0 All data D2 D3 D4 D5 D6 D7 D8 0 aaa C11 7 data, 1 control D1 D2 D3 D4 D5 D6 D7 1 aaa C1 1 6 data, 2 control 0 bbb C2 D1 D2 D3 D4 D5 D6 1 aaa...

Ngày tải lên: 14/08/2014, 17:21

... 309–311 installation in, 159– 160 large-scale wireless data LANs, 160 – 161 access points in, 165 – 169 challenges in, 161 – 162 design approach in, 162 – 164 Design, large-scale wireless data LANs (Cont.): frequency ... services in IEEE 802.11, 55 Data IP convergence, 15–18 Data- only systems, 12 Data paths in IS-8 56 networks, 57 Data plane level gateway functions, 179...

Ngày tải lên: 14/08/2014, 17:21