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Open Access
Millimeter-Wave Wireless LAN and Its Extension toward 5G Heterogeneous Networks

Kei SAKAGUCHI, Ehab Mahmoud MOHAMED, Hideyuki KUSANO, Makoto MIZUKAMI, Shinichi MIYAMOTO, Roya E. REZAGAH, Koji TAKINAMI, Kazuaki TAKAHASHI, Naganori SHIRAKATA, Hailan PENG, Toshiaki YAMAMOTO, Shinobu NANBA

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Summary :

Millimeter-wave (mmw) frequency bands, especially 60GHz unlicensed band, are considered as a promising solution for gigabit short range wireless communication systems. IEEE standard 802.11ad, also known as WiGig, is standardized for the usage of the 60GHz unlicensed band for wireless local area networks (WLANs). By using this mmw WLAN, multi-Gbps rate can be achieved to support bandwidth-intensive multimedia applications. Exhaustive search along with beamforming (BF) is usually used to overcome 60GHz channel propagation loss and accomplish data transmissions in such mmw WLANs. Because of its short range transmission with a high susceptibility to path blocking, multiple number of mmw access points (APs) should be used to fully cover a typical target environment for future high capacity multi-Gbps WLANs. Therefore, coordination among mmw APs is highly needed to overcome packet collisions resulting from un-coordinated exhaustive search BF and to increase total capacity of mmw WLANs. In this paper, we firstly give the current status of mmw WLANs with our developed WiGig AP prototype. Then, we highlight the great need for coordinated transmissions among mmw APs as a key enabler for future high capacity mmw WLANs. Two different types of coordinated mmw WLAN architecture are introduced. One is distributed antenna type architecture to realize centralized coordination, while the other is autonomous coordination with the assistance of legacy Wi-Fi signaling. Moreover, two heterogeneous network (HetNet) architectures are also introduced to efficiently extend the coordinated mmw WLANs to be used for future 5th Generation (5G) cellular networks.

Publication
IEICE TRANSACTIONS on Communications Vol.E98-B No.10 pp.1932-1948
Publication Date
2015/10/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E98.B.1932
Type of Manuscript
Special Section INVITED PAPER (Special Section on 5G Radio Access Networks―Part II: Multi-RAT Heterogeneous Networks and Smart Radio Technologies)
Category

Authors

Kei SAKAGUCHI
  Osaka University
Ehab Mahmoud MOHAMED
  Osaka University,Aswan University
Hideyuki KUSANO
  Osaka University
Makoto MIZUKAMI
  Tokyo Institute of Technology
Shinichi MIYAMOTO
  Osaka University
Roya E. REZAGAH
  Tokyo Institute of Technology
Koji TAKINAMI
  Panasonic Corporation
Kazuaki TAKAHASHI
  Panasonic Corporation
Naganori SHIRAKATA
  Panasonic Corporation
Hailan PENG
  KDDI R&D Laboratories, Inc.
Toshiaki YAMAMOTO
  KDDI R&D Laboratories, Inc.
Shinobu NANBA
  KDDI R&D Laboratories, Inc.

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