Journal of Korea Multimedia Society (한국멀티미디어학회논문지)

Korea Multimedia Society (한국멀티미디어학회)
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Adaptive ARQ Method for Enhancements of LTE MAC Protocol

  • Jung, Yonghak (Mobian Co., Ltd.) ;
  • Kwon, Youngmi (Dept. of Radio & Information Communications Engineering, Chungnam National University)
  • Received : 2016.10.10
  • Accepted : 2016.12.06
  • Published : 2016.12.30
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Abstract

In layered communication architecture, each layer is designed to service its own functions to higher layer while getting serviced by lower layer. Usually layered architectures are not optimized in a total view of whole services and functions. So cross layer design pursues performance enhancements by optimizing in various ways. In LTE, MAC layer uses HARQ mechanism and RLC layer uses ARQ mechanism for retransmission. According to the 3GPP 36.331 specification, two layers' cooperation may not happen in an optimized way. This paper suggests an adaptive MAC layer approach which RLC layer's function might be initiated in MAC layer in advance to utilize MAC layer's idling wasting time for RLC layer's next decision. This adaptive ARQ method in MAC layer speeds up the next retransmission and reduces the overall transmission time. Emulation shows the improved performance in total retransmission time and retransmission success ratio. In wireless shadow area, the retransmission occurs frequently. Our approach has strong points in this poor wireless condition.

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References

  1. Global Mobile Suppliers Association, LTE Subscriptions, Growth and Regional Shares, GSA Chart Reports, 2015.
  2. Hee Jong Kang, 4G LTE subscribers reaches up to 10%, Asian Economy Internet News, 2015, http://www.asiae.co.kr/news/view.htlm?idxno=2015092601025903685 (accessed Sep., 29, 2015).
  3. V.S. Gandhi and B. Maheswaran, "A Cross Layer Performance Enhancements in LTE-A System," Proceedings of International Conference on Wireless Communications, Signal Processing and Networking, pp. 905-909, 2016.
  4. N. Bouchemal, S. Kallel, and S. Tohme, "A Cross-layer QoS Solution for Resource Optimization in LTE Networks," Proceedings of IEEE Symposium on Computers and Communication, pp. 352-357, 2016.
  5. A. Mukhopadhyay, G. Das, and V.S.K. Reddy, "A Fair Uplink Scheduling Algorithm to Achieve Higher MAC Layer Throughput in LTE," Proceedings of IEEE International Conference on Communications, pp. 3119-3124, 2015.
  6. S. Brueck, J. Giese, L. Zhao, and A. Dekorsy, "On MAC Layer Throughput Enhancements in LTE-A by Downlink Macro Diversity," Proceeding of IEEE International Conference on Communications Workshops, pp. 1-5, 2009.
  7. 3GPP E-UTRA and E-UTRAN; Overall Description, Stage 2, 3GPP, TS 36.300 v10.8.0, Release 10, 2012.
  8. 3GPP E-UTRA Medium Access Control (MAC) Protocol Specification, Release 10, 3GPP, TS 36.321 v10.5.0, 2012.
  9. Long Term Evolution Protocol Overview, White Paper, Freescale Semiconductor, Document Number: LTEPTCLOVWW P, 2008.
  10. 3GPP E-UTRA Radio Resource Control (RRC) Protocol Specification, Release 10, 3GPP, TS 36.331 v10.7.0, 2012.
  11. 3GPP E-UTRA Radio Link Control (RLC) Protocol Specification, Release 10, 3GPP, TS 36.322 v10.0.0, 2012.
  12. TMS320C6670 Data Manual, http://www.ti.com (accessed Sep., 29, 2015).

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