CDMA Systems Capacity Engineering

This new hands-on resource tackles capacity planning and engineering issues that are crucial to optimizing wireless communication systems performance. Going beyond the system physical level and investigating CDMA system capacity at the service level, this volume is the single-source for engineering and analyzing systems capacity and resources.

Insoo Koo is a research professor at Kwang-Ju Institute of Science and Technology, South Korea.

Preface

ix

Acknowledgments

xi

Introduction

1

(16)

Capacity Issues

6

(3)

Overview and Coverage

9

(8)

References

14

(3)

System Capacity of CDMA Systems

17

(12)

Introduction

17

(1)

System Model and Analysis

18

(2)

Single Cell CDMA Capacity

20

(2)

Multiple Cell CDMA Capacity

22

(3)

Conclusions

25

(4)

References

27

(2)

Sensitivity Analysis in CDMA Systems

29

(10)

System Model and System Capacity

30

(2)

The Significance and Definitions of Sensitivity Analysis

32

(2)

The Significance of Sensitivity Analysis

32

(1)

Basic Definitions of Sensitivity

32

(2)

Sensitivity of System Capacity with Respect to System Reliability in CDMA Cellular Systems

34

(3)

Conclusion

37

(2)

References

37

(2)

Effect of Traffic Activity on System Capacity

39

(16)

Introduction

39

(1)

Traffic Modeling

40

(2)

Outage Probability and System Capacity

42

(5)

AILM

43

(1)

SILM

44

(2)

Comparison of AILM and SILM

46

(1)

Effect of Traffic Activity on System Capacity

47

(4)

Analysis Under the Same Transmission Rate

48

(1)

Analysis Under the Same Average Rate

49

(2)

Conclusions

51

(4)

References

52

(3)

A Dynamic Resource Allocation Scheme to Efficiently Utilize System Capacity

55

(14)

Introduction

56

(1)

System Capacity and Remaining Resources

57

(1)

Service Rates for Throughput Maximization

58

(3)

The Proposed Resource Allocation Scheme

61

(3)

Group Selection According to the Parameters of VBR Service Groups

64

(3)

Conclusions

67

(2)

References

68

(1)

Voice/Data Mixed CDMA Systems with Prioritized Services

69

(18)

Introduction

69

(1)

System and Traffic Models

70

(3)

System Model

70

(1)

Traffic Model

71

(2)

Erlang Capacity Analysis Under the Proposed CAC Scheme

73

(6)

Numerical Example

79

(5)

Conclusion

84

(3)

References

85

(2)

Erlang Capacity of CDMA Systems Supporting Multiclass Services

87

(14)

Introduction

87

(1)

System Model and System Capacity

88

(3)

Erlang Capacity for the Multimedia CDMA Systems

91

(2)

Numerical Example

93

(3)

Conclusion

96

(5)

References

98

(3)

Erlang Capacity Under the Delay Constraint

101

(22)

Introduction

101

(1)

System Model

102

(2)

Markov Chain Model and Blocking Probability

104

(4)

Delay Distribution

108

(6)

Delay Confidence

114

(2)

Erlang Capacity

116

(3)

Conclusions

119

(4)

References

120

(3)

Multiclass CDMA Systems with a Limited Number of Channel Elements

123

(18)

Introduction

123

(1)

System Model

124

(1)

Erlang Capacity for the Multimedia CDMA Systems

125

(4)

Numerical Example and Discussion

129

(8)

Single FA Case

129

(4)

Case of Multiple FAs and Graphic Interpretation Method

133

(4)

Conclusion

137

(4)

References

139

(2)

Approximate Analysis Method for CDMA Systems with Multiple Sectors and Multiple FAs

141

(12)

Introduction

141

(1)

System Model

142

(1)

Approximate Analysis Method

142

(3)

Calculation Complexity of the Proposed Method

145

(2)

Numerical Example

147

(4)

An Interesting Observation: Two Traffic Parameters to Efficiently Approximate the Call Blocking Probability in CDMA Systems with Three Sectors

148

(3)

Conclusion

151

(2)

References

152

(1)

Erlang Capacity of Hybrid FDMA/CDMA Systems Supporting Multiclass Services

153

(16)

Introduction

153

(2)

System Model

155

(1)

Channel Assignment Methods

156

(1)

ICCA

157

(1)

CCCA

157

(1)

Erlang Capacity Analysis

157

(5)

Erlang Capacity Analysis for CCCA

157

(5)

Erlang Capacity Analysis for ICCA

162

(1)

Numerical Example

162

(4)

Conclusion

166

(3)

References

167

(2)

Erlang Capacity of Multiaccess Systems Supporting Voice and Data Services

169

(18)

Introduction

169

(1)

System Model

170

(2)

Operation Methods of Multiaccess Systems

172

(2)

Separate Operation Method

173

(1)

Common Operation Method

173

(1)

Erlang Capacity Analysis

174

(4)

Erlang Capacity Analysis for Separate Operation Method

174

(3)

Erlang Capacity Analysis for Common Operation Method

177

(1)

Numerical Results

178

(5)

Conclusion

183

(4)

References

184

(3)

Appendix A The M/M/∞ Model

187

(2)

Appendix B The M/M/m Loss Model

189

(2)

List of Acronyms

191

(2)

About the Authors

193

(2)

Index

195

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CDMA Systems Capacity Engineering

Summary

Author Biography

Table of Contents

Supplemental Materials