Multi-cell coordination in K-tier heterogeneous downlink cellular networks: Dynamic clustering and feedback allocation

Jeonghun Park; Namyoon Lee; Robert W. Heath

doi:10.23919/WIOPT.2018.8362870

Multi-cell coordination in K-tier heterogeneous downlink cellular networks: Dynamic clustering and feedback allocation

Jeonghun Park, Namyoon Lee, Robert W. Heath

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We characterize the ergodic spectral efficiency of a cooperative type of K-tier heterogeneous networks (HetNets) with limited feedback. Specifically, a base station (BS) coordination set is formed by using dynamic clustering across the tiers, wherein the intra-cluster interference is mitigated by using multi-cell zero-forcing based on limited feedback. Modeling the network based on stochastic geometry, we derive analytical expressions for the ergodic spectral efficiency as a function of the system parameters. Leveraging the obtained expression, we formulate a feedback allocation problem and obtain a solution to improve the ergodic spectral efficiency. Simulations show the spectral efficiency improvement by using the proposed feedback allocation. One major finding in the obtained solution is that allocating more feedback to stronger intra-cluster BSS is efficient.

Original language	English
Title of host publication	2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9783903176003
DOIs	https://doi.org/10.23919/WIOPT.2018.8362870
Publication status	Published - 2018 May 22
Event	16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018 - Shanghai, China Duration: 2018 May 7 → 2018 May 11

Publication series

Name	2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018

Conference

Conference	16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018
Country/Territory	China
City	Shanghai
Period	18/5/7 → 18/5/11

Bibliographical note

Funding Information:
This work was supported in part by the National Science Foundation under Grant NSF-CCF-1319556, in part by the Institute for Information & communications Technology Promotion (IITP) under grant funded by the MSIT of the Korea government (No.2018(2016-0-00123), Development of Integer-Forcing MIMO Transceivers for 5G & Beyond Mobile Communication Systems.

Publisher Copyright:
© 2018 IFIP.

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Hardware and Architecture
Control and Optimization
Modelling and Simulation

Access to Document

10.23919/WIOPT.2018.8362870

Cite this

Park, J., Lee, N., & Heath, R. W. (2018). Multi-cell coordination in K-tier heterogeneous downlink cellular networks: Dynamic clustering and feedback allocation. In 2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018 (2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/WIOPT.2018.8362870

Park, Jeonghun ; Lee, Namyoon ; Heath, Robert W. / Multi-cell coordination in K-tier heterogeneous downlink cellular networks : Dynamic clustering and feedback allocation. 2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018. Institute of Electrical and Electronics Engineers Inc., 2018. (2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018).

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abstract = "We characterize the ergodic spectral efficiency of a cooperative type of K-tier heterogeneous networks (HetNets) with limited feedback. Specifically, a base station (BS) coordination set is formed by using dynamic clustering across the tiers, wherein the intra-cluster interference is mitigated by using multi-cell zero-forcing based on limited feedback. Modeling the network based on stochastic geometry, we derive analytical expressions for the ergodic spectral efficiency as a function of the system parameters. Leveraging the obtained expression, we formulate a feedback allocation problem and obtain a solution to improve the ergodic spectral efficiency. Simulations show the spectral efficiency improvement by using the proposed feedback allocation. One major finding in the obtained solution is that allocating more feedback to stronger intra-cluster BSS is efficient.",

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Park, J, Lee, N & Heath, RW 2018, Multi-cell coordination in K-tier heterogeneous downlink cellular networks: Dynamic clustering and feedback allocation. in 2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018. 2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018, Institute of Electrical and Electronics Engineers Inc., 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018, Shanghai, China, 18/5/7. https://doi.org/10.23919/WIOPT.2018.8362870

Multi-cell coordination in K-tier heterogeneous downlink cellular networks : Dynamic clustering and feedback allocation. / Park, Jeonghun; Lee, Namyoon; Heath, Robert W.

2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018. Institute of Electrical and Electronics Engineers Inc., 2018. (2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Park, Jeonghun

AU - Lee, Namyoon

AU - Heath, Robert W.

N1 - Funding Information: This work was supported in part by the National Science Foundation under Grant NSF-CCF-1319556, in part by the Institute for Information & communications Technology Promotion (IITP) under grant funded by the MSIT of the Korea government (No.2018(2016-0-00123), Development of Integer-Forcing MIMO Transceivers for 5G & Beyond Mobile Communication Systems. Publisher Copyright: © 2018 IFIP.

PY - 2018/5/22

Y1 - 2018/5/22

N2 - We characterize the ergodic spectral efficiency of a cooperative type of K-tier heterogeneous networks (HetNets) with limited feedback. Specifically, a base station (BS) coordination set is formed by using dynamic clustering across the tiers, wherein the intra-cluster interference is mitigated by using multi-cell zero-forcing based on limited feedback. Modeling the network based on stochastic geometry, we derive analytical expressions for the ergodic spectral efficiency as a function of the system parameters. Leveraging the obtained expression, we formulate a feedback allocation problem and obtain a solution to improve the ergodic spectral efficiency. Simulations show the spectral efficiency improvement by using the proposed feedback allocation. One major finding in the obtained solution is that allocating more feedback to stronger intra-cluster BSS is efficient.

AB - We characterize the ergodic spectral efficiency of a cooperative type of K-tier heterogeneous networks (HetNets) with limited feedback. Specifically, a base station (BS) coordination set is formed by using dynamic clustering across the tiers, wherein the intra-cluster interference is mitigated by using multi-cell zero-forcing based on limited feedback. Modeling the network based on stochastic geometry, we derive analytical expressions for the ergodic spectral efficiency as a function of the system parameters. Leveraging the obtained expression, we formulate a feedback allocation problem and obtain a solution to improve the ergodic spectral efficiency. Simulations show the spectral efficiency improvement by using the proposed feedback allocation. One major finding in the obtained solution is that allocating more feedback to stronger intra-cluster BSS is efficient.

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PB - Institute of Electrical and Electronics Engineers Inc.

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Park J, Lee N, Heath RW. Multi-cell coordination in K-tier heterogeneous downlink cellular networks: Dynamic clustering and feedback allocation. In 2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018. Institute of Electrical and Electronics Engineers Inc. 2018. (2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2018). doi: 10.23919/WIOPT.2018.8362870

Multi-cell coordination in K-tier heterogeneous downlink cellular networks: Dynamic clustering and feedback allocation

Abstract

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Bibliographical note

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