[...]... frequency division (OFDM) as the basis for their new 5 GHz standard, targeting a range of data rates ranging from 6 to 54 Mb/s The principles of OFDM are discussed in Chapters 4 and 5 Following IEEE 802.11 a, High-Performance LAN (HiperLAN/2) (Europe) and Multimedia Mobile Access Communication (MMAC) (Japan) adopted OFDM in their physical layer specifications The parameters of the IEEE 802 11a OFDM standard... cellular systems xiv PRINCIPLES OF MOBILE COMMUNICATION SECOND EDITION Chapter 4 covers the various types of modulation schemes that are used in mobile communication systems along with their spectral characteristics Chapter 5 discusses the performance of digital signal on narrow-band flat fading channels with a variety of receiver structures, while Chapter 6 includes a treatment of antenna diversity techniques... Parameters of the air interfaces of these standards are summarized in Tabs 1.2 and 1.3, and a brief description of each follows 1.2.1 GSM/DCS1800/PCS1900 European countries seen the deployment of incompatible first generation cellular systems that prevented roaming throughout Europe As as result, the Conference of European Postal and Telecommunications Administrations (CEPT) established Groupe Speciale Mobile. .. to the IMT-2000 standard definition The vision of IMT-2000 is to provide ubiquitous wireless network that can support voice, multimedia and high-speed data communication One of the main attributes of IMT-2000 is the introduction of wireless wide-band packet-switched data services for wireless access to Internet with speeds up to 2 Mb/s The key principles of IMT-2000 are: Terminal and personal mobility... the use of portable terminals Personal mobility will be facil- itated through the use of personalized telephone numbers The success of using a wireline telephone depends upon the knowledge of where a called party is located As a result, 80% of the calls never reach the intended party With personal communication services (PCS), intelligent networks (INs) will be employed to assume the burden of locating... familiarity with the standards and are seeking to deepen their knowledge of the fundamentals and principles of this important field Chapter 1 begins with an overview that is intended to introduce a broad array of issues relating to wireless communications Included is a description of various wireless systems and services, basic concepts of cellular frequency reuse, and the link budget for cellular radio... prime the more serious graduate students that would like to pursue research in the area The book is intended to stress the fundamentals of mobile communications engineering that are important to any mobile communication system I have therefore kept the description of existing and proposed wireless standards and systems to a minimum The emphasis on fundamental issues should benefit not only to students... with a userspecific PN sequence of length Both the BSs and the MSs use RAKE receivers to provide multipath diversity A requirement of the IS-95 system is the need for soft handoffs, where the MS maintain can a radio link with multiple BSs in the boundary area between cells Ever since the introduction of IS-95, there has been a continued debate over the relative capacity of IS-54/136 and IS-95 Initial... parameters of various cordless phone standards are summarized in Tab 1.4 1.4 THIRD GENERATION CELLULAR SYSTEMS In March 1992, WARC approved a worldwide spectral allocation in support of IMT-2000 (International Mobile Telephone by the Year 2000) in the 1885-2200 MHz band The IMT-2000 standard has been developed by the International Telecommunications Union Radio Communications (ITU-R) and Telecommunications... Evaluation of Union Bounds for TCM 8.7 Turbo Codes 8.7.1 PCCC Encoder 8.7.2 PCCC Decoder 8.7.3 SCCC Encoder and Decoder 8.7.4 Weight Distribution 8.7.4.1 Weight Distribution of PCCCs ix 366 370 370 371 373 374 376 378 381 391 394 394 395 396 396 397 397 398 398 399 399 399 402 405 407 407 408 412 413 417 422 423 424 426 427 429 429 431 431 433 436 443 444 446 448 448 450 x PRINCIPLES OFMOBILE COMMUNICATION . http://www.epubcn.org Principles of Mobile Communication Second Edition This page intentionally left blank Principles of Mobile Communication Second Edition Gordon. Densities of Digitally Modulated Signals 4.9.1 Psd of a Complex Envelope 4.9.2 Psd of QAM 4.9.3 Psd of PSK 4.9.4 Psd of OQPSK 4.9.5 Psd of 4.9.6 Psd of OFDM 4.9.7