Capacity enhancement using reversed-pair TDD frame in OFDMA femto-cell systems

Hano Wang, Daesik Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Demanding on higher data rate in wireless communications, femto-cell has been proposed to implement that with a low cost. The femto-cell can be realized by deploying a femto-base-station connected to the core network via a wired-backhaul. Through the wired-backhaul, a downlink and uplink data packets are delivered to the femto-base-station and the core network, respectively. Although the femto-cell with a low transmission power has a small cell coverage, co-channel interference problem between macro-cell and femto-cell has been an important research issue to deploy the femto-cell in the real world since the femto-cell reuses the macro-cell spectrum. As a solution to the co-channel interference problem, we propose a new time-division-duplex (TDD) frame structure called reversed-pair frame (RPF). The RPF consists of two TDD frames with a reversed order of downlink and uplink. Using the RPF and a wired-backhaul-delivered downlink data, capacity enhancement can be achieved through a simple interference mitigation process. We evaluate the performance of the RPF through analyzing the capacity of the two-user case, which is applied to multi-user case. The results show that adopting the RPF in a OFDMA femto-cell systems greatly enhances the uplink capacity of both the macro-cell and the femto-cell, and even downlink capacities of them than using the conventional TDD frame.

Original languageEnglish
Title of host publicationProceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
DOIs
Publication statusPublished - 2009 Dec 1
Event2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall - Anchorage, AK, United States
Duration: 2009 Sep 202009 Sep 23

Other

Other2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
CountryUnited States
CityAnchorage, AK
Period09/9/2009/9/23

Fingerprint

Femtocell
Orthogonal Frequency Division multiple Access (OFDMA)
Macros
Division
Enhancement
Base stations
Uplink
Power transmission
Co-channel Interference
Cell
Communication
Frame Structure
Costs
Wireless Communication
Reuse
Coverage
Interference
Evaluate

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Wang, H., & Hong, D. (2009). Capacity enhancement using reversed-pair TDD frame in OFDMA femto-cell systems. In Proceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall [5378847] https://doi.org/10.1109/VETECF.2009.5378847
Wang, Hano ; Hong, Daesik. / Capacity enhancement using reversed-pair TDD frame in OFDMA femto-cell systems. Proceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall. 2009.
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Wang, H & Hong, D 2009, Capacity enhancement using reversed-pair TDD frame in OFDMA femto-cell systems. in Proceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall., 5378847, 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall, Anchorage, AK, United States, 09/9/20. https://doi.org/10.1109/VETECF.2009.5378847

Capacity enhancement using reversed-pair TDD frame in OFDMA femto-cell systems. / Wang, Hano; Hong, Daesik.

Proceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall. 2009. 5378847.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Wang H, Hong D. Capacity enhancement using reversed-pair TDD frame in OFDMA femto-cell systems. In Proceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall. 2009. 5378847 https://doi.org/10.1109/VETECF.2009.5378847