Heterogeneous Cloud Radio Access Networks：Principle，Architecture，Techniques and Challenges

Mugen Peng; Yuan Ai

doi:10.11959/j.issn.1000-0801.2015122

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Heterogeneous Cloud Radio Access Networks：Principle，Architecture，Techniques and Challenges

Topic:4G＆5G | 更新时间：2024-06-05

- Heterogeneous Cloud Radio Access Networks：Principle，Architecture，Techniques and Challenges
- Telecommunication Science Vol. 31, Issue 5, Pages: 41-45(2015)
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- DOI：10.11959/j.issn.1000-0801.2015122
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- Published Online：2015-05，
  
  Published：20 May 2015
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Mugen Peng, Yuan Ai. Heterogeneous Cloud Radio Access Networks：Principle，Architecture，Techniques and Challenges[J]. Telecommunication science, 2015, 31(5): 41-45.
DOI：

Mugen Peng, Yuan Ai. Heterogeneous Cloud Radio Access Networks：Principle，Architecture，Techniques and Challenges[J]. Telecommunication science, 2015, 31(5): 41-45. DOI： 10.11959/j.issn.1000-0801.2015122.

摘要

为了缓解密集异构无线网络节点间严重的干扰，提高节点间分布式协作处理增益，同时解决云无线接入网络控制信息传输复杂、无法和已有移动通信网络融合等问题，提出了异构云无线接入网络（H-CRAN）作为5G移动通信系统的接入网解决方案。所提H-CRAN的核心是将云无线接入网络与密集异构无线网络融合，将控制平面功能从云无线接入网络中抽离，通过已存的异构大功率节点实现控制平面功能和全网的无线覆盖，利用无线射频单元实现热点区域海量业务的大容量传输。介绍了H-CRAN的系统架构、关键技术组织和研究技术挑战等。

Abstract

To mitigate the severe inter-tier interference and enhance limited cooperative gains resulting from the constrained and non-ideal transmissions between adjacent base stations in heterogeneous networks（HetNet），and solve the emerging problems including the complex delivery of control signaling and difficult convergence with the existing mobile cellular networks in cloud radio access networks（C-RAN），heterogeneous cloud radio access networks （H-CRAN）were proposed as the promising solution for the fifth generation radio access network. The core characteristics of H-CRAN are to combine the advantages of HetNet and C-RAN，decouple the control plane from C-RAN into the existing heterogeneous high power nodes（HPN），and deploy dense simple remote radio heads（RRH） to absorb huge traffic in some hot spots. The issues of system architectures，promising key techniques，and researching challenges were discussed.

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references

Peng M G ， Liu Y ， Wei D Y ， et al . Hierarchical cooperative relay based heterogeneous networks . IEEE Wireless Communications ， 2011 ， 18 （ 3 ）： 48 ～ 56

Peng M G ， Li Y ， Jiang J M ， et al . Heterogeneous cloud radio access networks：a new perspective for enhancing spectral and energy efficiencies . IEEE Wireless Communications ， 2014 ， 21 （ 6 ）： 126 ～ 135

Peng M G ， Li Y ， Zhao Z Y ， et al . System architecture and key technologies for 5G heterogeneous cloud radio access networks . IEEE Network ， 2015 ， 29 （ 2 ）： 6 ～ 14

Peng M G ， Zhang K C ， Jiang J M ， et al . Energy-efficient resource assignment and power allocation in cloud heterogeneous radio access networks . IEEE Transactions on Vehicular Technology ， 2014 （ 99 ）： 1 ～ 13

Li J ， Peng M G ， Cheng A L ， et al . Delay-aware cooperative multipoint t ransmission with backhaul limitation in cloud-RAN . Proceedings of 2014 IEEE International Conference on Communications（ICC）Workshops ， Sydney，Australia ， 2014 ： 665 ～ 670

Peng M G ， Liang D ， Wei Y ， et al . Self-configuration and self-optimization in LTE-Advanced heterogeneous networks . IEEE Communications Magazine ， 2013 ， 51 （ 5 ）： 36 ～ 45

Peng M G ， Yan S ， Poor H V ， et al . Ergodic capacity analysis of remote radio head associations in cloud radio access networks . IEEE Wireless Communications Letters ， 2014 ， 3 （ 4 ）： 365 ～ 368

Peng M G ， Li Y ， Quek T Q S ， et al . Device-to-device underlaid cellular networks under rician fading channels . IEEE Transactions on Wireless Communications ， 2014 ， 13 （ 8 ）： 4247 ～ 4259

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