Resource Allocation in Unlicensed Long Term Evolution HetNets

This SpringerBrief  investigates cross layer resource allocation in unlicensed LTE (Long Term Evolution)  HetNets. Specifically, the authors study and cover the radio access management of unlicensed LTE to allow efficient spectrum utilization and harmonious coexistence with other unlicensed systems in this brief. Efficient radio access protocols are developed to allow unlicensed LTE users to fair share channel access with unlicensed users in different systems, including Wi-Fi and unlicensed LTE of other operators. An analytical model is developed to study the performance of the proposed protocols.

 To achieve efficient spectrum sharing among various unlicensed users, the authors further formulate a resource allocation problem based on Nobel Prize winning game theory framework, and propose efficient algorithms to achieve the maximal user utility. Opportunistic traffic offloading from licensed band to unlicensed bands is also investigated, based on the network formation game. By exploiting the characteristics of mobile social networks, the offloading performance can be further enhanced.

 This brief targets researchers and engineers from both academia and industry interested in the development of LTE over unlicensed bands, as well as the design and implementation of cross layer radio resource management. Students studying electrical engineering and computer science will also find this brief useful for their studies.

List of Abbreviations

List of Symbols

1

1.1

Long Term Evolution (LTE)

1.2

Research challenges

1.3

Resource allocation in Unlicensed LTE

Outline

References

2

Radio access management of Unlicensed LTE

2.1

Introduction

2.2

System model

2.3

2.4

Performance analysis of LBT-based radio access

2.5

Performance evaluation

2.6

Summery

References

Game theory based spectrum sharing

3.1

Introduction

3.2

3.3

Problem Formulation for coexistence

3.4

Game theory based resource allocation

3.5

Performance evaluation

Summery

References

4

Traffic offloading from licensed band to unlicensed band

Introduction

4.2

4.3

Opportunistic traffic offloading based on network formation game

4.4

Performance evaluation

4.5

Summary

References

6

Conclusions and Future Works

6.1

Conclusions

6.2

Future Research Directions