Advances in 3G enhanced technologies for wireless communications Machine generated contents note: 1 WCDMA Enhanced Technologies 11 Physical Channel and Spreading Code Assignment 111 Physical Channel 112 Spreading Code Assignment 12 Transport Channel Multiplexing 121 Explanation of Data Format for Layer 1 122 Transport Channel 123 Multiplexing and Rate Matching 13 Asynchronous Cell Sites and Synchronization 131 Synchronization in UTRAN 132 Cell Search 133 Random Access 14 SIR Measurement Based Fast TPC 15 Diversity 151 Coherent RAKE Combining (RAKE Time Diversity) 152 Site Diversity (Soft Softer Handover) 153 Transmit Diversity 16 WCDMA Capacity Enhanced Technologies 161 Coherent Adaptive Antenna Array Diversity Receiver Adaptive Antenna Array Transmit Diversity 162 Experiments References 2 Downlink Performance Enhancements in CDMA Cellular Systems 21 Evaluation of WCDMA Downlinks 211 Assumptions in System Evaluation 212 Downlink Capacities of WCDMA 213 Impact of SHO Window Threshold on Downlink Capacity 22 Optimum Orthogonal Code Allocation in CDMA Downlinks 23 Site Selection Diversity TPC 231 Overview 232 Detailed Operation 233 Simulation Conditions for Evaluation of Performance 234 Codeword Set 235 Performance 236 Performance in Combination with Transmission Diversities 24 Summary and Subjects for Future Study References 3 GSM EDGE Radio Access Network: Evolution of GSM EDGE Toward 3G Mobile Services 31 Introduction 32 3G Mobile Services 33 Architecture 331 Introduction 332 BSS External Interfaces 333 Modes of Operation 334 Protocol Architectures 34 Radio Interface Protocols 341 General 342 RRC Protocol 343 PDCP 344 RLC 345 MAC 35 GERAN Physical Layer 351 Services 352 From GSM EDGE to GERAN 353 Physical Resource 354 Logical Channels 355 Mapping of Logical Channels onto Basic Physical Subchannels 356 Channel Coding 357 Fast Power Control in GERAN 36 Security in GERAN 361 Ciphering 362 Integrity Protection 37 Conclusion References Appendix 3A: Radio Access Bearer Realization 3A. 1 Conversational 3A2 Streaming 3A3 Interactive and Background 4 CDMA2000 High Rate Packet Data System 41 Introduction 42 Overview of the IS 856 Basic Concepts 43 Overlaying IS 2000 and IS 856 Systems 44 IS 856 Physical Layer Description 441 Forward Link 442 Reverse Link 45 IS 856 MAC Layer Description 451 Forward Traffic Channel MAC 452 Reverse Traffic Channel MAC 46 Link Budget 461 Link Budget Analysis 462 IS 856 Link Budget Assumptions 463 Link Budget Calculation Acknowledgments References 5 Peak to Average Ratio of CDMA Systems 51 Background and Introduction of PAR 511 General PAR Definition 52 PAR Analysis of CDMA Signals 521 PAR for Single Carrier DS CDMA Systems 522 PAR for Multicarrier CDMA Systems 53 PAR Control for CDMA Signals 531 PAR Control for Single Carrier DS CDMA Systems 532 PAR Reduction Technique for Multicarrier CDMA Systems 54 Conclusion References 6 IP Mobility Framework for Supporting Wireless and Mobile Internet 61 Introduction 62 Challenges of IP Mobility 621 User Identity 622 Address Management 623 Dynamic Host Configuration Protocol and Domain Name Server Interfaces 624 Mobility Related Information 625 Security 626 User Privacy 627 Dynamic Profile Distribution 628 Mobility Based AAA Protocol 629 Handoff 6210 Broker Services 6211 B2B Service Agreements 63 IP Mobility Architecture Framework 631 IP Mobility Architecture Components 64 IPv6 Challenges for IP Mobility 641 Resource Management Layer 642 Routing Layer 65 Conclusion Acknowledgments References 7 Software Radio: A Prospective Technology for Future Broadband Communication Systems 71 Introduction 72 Mobile Communication Scenario in the 2010 73 Overview of Software Radios 731 Motivation to Develop Software Radios and Their Advantages 732 Historical Background 733 Practical Software Radio Architecture 734 Frequency Domain Illustration of the Receiver Signal Processing 74 Bandpass Sampling 741 Basic Principle and Implementation Considerations 742 Extensions of Bandpass Sampling 75 Decimation Filtering 751 Single Stage Decimation 752 Multistage Decimation 753 Reduced Complexity Implementation Based on the Polyphase Technique 754 Reduced Complexity Implementation by Half Band Filters 755 Filter Implementation Using Multiple Bandstop Filters 756 Cascaded Integration and Comb Filters 757 Choice of Filtering Methods 76 Filter Bank Channelizers 77 Fractional Sampling Rate Conversion 78 Concluding Remarks References