1 Overview of Wireless Communications �o��ͨ�Ÿ���

1.1 History of Wireless Communications �o��ͨ�ŵĚvʷ

1.2 Wireless Vision �o��Ը��

1.3 Technical Issues ���g���}

1.4 Current Wireless Systems �F�Пo��ϵ�y

1.4.1 Cellular Telephone Systems ��C�Ԓϵ�y

1.4.2 Cordless Phones �o�K�Ԓϵ�y

1.4.3 Wireless Local Area Networks �o������W

1.4.4 Wide Area Wireless Data Services �V��o�������I��

1.4.5 Broadband Wireless Access �����o������

1.4.6 Paging Systems ����ϵ�y

1.4.7 Satellite Networks �l��ͨ�žW

1.4.8 Low-Cost, Low-Power Radios: Bluetooth and ZigBee �ͳɱ����͹��ʵğo��ͨ�ţ��{�����Ϸ�

1.4.9 Ultrawideband Radios �������o��ͨ��

1.5 The Wireless Spectrum �o���l�V

1.5.1 Methods for Spectrum Allocation �l�V�ķ��䷽ʽ

1.5.2 Spectrum Allocations for Existing Systems �F��ϵ�y���l�V����

1.6 Standards �˜�

Problems ���}

References �����īI

2 Path Loss and Shadowing ·���p�ĺ��Ӱ˥��

2.1 Radio Wave Propagation �o��늲�����

2.2 Transmit and Receive Signal Models �l�ͺͽ�����̖ģ��

2.3 Free-Space Path Loss ���ɿ��g·���p��

2.4 Ray Tracing �侀��ۙ

2.4.1 Two-Ray Model �ɏ�ģ��

2.4.2 Ten-Ray Model (Dielectric Canyon) ʮ��ģ�ͣ���늍{�ȣ�

2.4.3 General Ray Tracing ͨ���侀��ۙ

2.4.4 Local Mean Received Power ����ƽ�����չ���

2.5 Empirical Path-Loss Models ���·���p��ģ��

2.5.1 Okumura Model �W��ģ��

2.5.2 Hata Model ����ģ��

2.5.3 COST 231 Extension to Hata Model ����ģ�͵�COST 231�Uչ

2.5.4 Piecewise Linear (Multislope) Model �۾�����б�ʣ�ģ��

2.5.5 Indoor Attenuation Factors �҃�˥�p����

2.6 Simplified Path-Loss Model ������·���p��ģ��

2.7 Shadow Fading �Ӱ˥��

2.8 Combined Path Loss and Shadowing ·���p�ĺ��Ӱ˥��Ļ��ģ��

2.9 Outage Probability under Path Loss and Shadowing ·���p�ĺ��Ӱ˥����ɵ��Д���

2.10?Cell Coverage Area �^���w����

Problems ���}

References �����īI

3 Statistical Multipath Channel Models �yӋ�����ŵ�ģ��

3.1 Time-Varying Channel Impulse Response �r׃�ŵ��ě_��푑�

3.2 Narrowband Fading Models խ��˥��ģ��

3.2.1 Autocorrelation, Cross-Correlation, and Power Spectral Density �����P�������P�͹����V�ܶ�

3.2.2 Envelope and Power Distributions ���j�͹��ʷֲ�

3.2.3 Level Crossing Rate and Average Fade Duration �ƽͨ�^�ʺ�ƽ��˥��r�L

3.2.4 Finite-State Markov Channels ���ޠ�B�R���ɷ��ŵ�

3.3 Wideband Fading Models ����˥��ģ��

3.3.1 Power Delay Profile ���ʕr���V

3.3.2 Coherence Bandwidth ��Ɏ���

3.3.3 Doppler Power Spectrum and Channel Coherence Time �����չ����V���ŵ���ɕr�g

3.3.4 Transforms for Autocorrelation and Scattering Functions �����P��ɢ�亯����׃�Q

3.4 Discrete-Time Model �xɢ�r�gģ��

3.5 Space-Time Channel Models �Օr�ŵ�ģ��

Problems ���}

References �����īI

4 Capacity of Wireless Channels �o���ŵ����ŵ�����

4.1 Capacity in AWGN AWGN�ŵ�����

4.2 Capacity of Flat Fading Channels ƽ̹˥���ŵ�������

4.2.1 Channel and System Model �ŵ���ϵ�yģ��

4.2.2 Channel Distribution Information Known �ŵ��ֲ���Ϣ��֪

4.2.3 Channel Side Information at Receiver ���ն���֪CSI

4.2.4 Channel Side Information at Transmitter and Receiver �հl�ɶ˶���֪CSI

4.2.5 Capacity with Receiver Diversity ���շּ����ŵ�����

4.2.6 Capacity Comparisons ��������

4.3 Capacity of Frequency-Selective Fading Channels �l���x����˥���ŵ�������

4.3.1 Time-Invariant Channels �r��׃�ŵ�

4.3.2 Time-Varying Channels �r׃�ŵ�

Problems ���}

References �����īI

5 Digital Modulation and Detection �����{���c�z�y

5.1 Signal Space Analysis ��̖���g����

5.1.1 Signal and System Model ��̖�cϵ�yģ��

5.1.2 Geometric Representation of Signals ��̖�Ď׺α�ʾ

5.1.3 Receiver Structure and Sufficient Statistics ���ՙC�Y���ͳ�ֽyӋ��

5.1.4 Decision Regions and the Maximum Likelihood Decision Criterion �ЛQ���*����Ȼ�ЛQ�ʄt

5.1.5 Error Probability and the Union Bound �`�a�ʺ�“�Ͻ�

5.2 Passband Modulation Principles ��ͨ�{��ԭ��

5.3 Amplitude and Phase Modulation ����/��λ�{��

5.3.1 Pulse Amplitude Modulation (MPAM) �}�_�����{��

5.3.2 Phase-Shift Keying (MPSK) �����I��

5.3.3 Quadrature Amplitude Modulation (MQAM) ���������{��

5.3.4 Differential Modulation ����{��

5.3.5 Constellation Shaping ��������

5.3.6 Quadrature Offset ����ƫ��

5.4 Frequency Modulation �l���{��

5.4.1 Frequency-Shift Keying (FSK) and Minimum-Shift Keying (MSK) �l���I�غ�*С�l���I��

5.4.2 Continuous-Phase FSK (CPFSK) �B�m��λ�l���I��

5.4.3 Noncoherent Detection of FSK FSK�ķ���əz�y

5.5 Pulse Shaping �}�_����

5.6 Symbol Synchronization and Carrier Phase Recovery �aԪͬ�����d����λ�֏�

5.6.1 Receiver Structure with Phase and Timing Recovery ������λ�Ͷ��r�֏͵Ľ��ՙC�Y��

5.6.2 Maximum Likelihood Phase Estimation *����Ȼ��λ��Ӌ

5.6.3 Ma