Macrodiversity for performance improvement of mmwave cellular communications | IEEE Conference Publication | IEEE Xplore

Macrodiversity for performance improvement of mmwave cellular communications


Abstract:

mmWave communications are considered as a promising candidate for small-cell deployment in 5G cellular systems. However, communication at these high frequency bands suffe...Show More

Abstract:

mmWave communications are considered as a promising candidate for small-cell deployment in 5G cellular systems. However, communication at these high frequency bands suffers from great path-loss and link outages due to blocking caused by different obstacles, including user's body. Thus, in this paper we analyze the efficiency of macrodiversity (MD) implementation for coping with these deteriorating effects. Two MD schemes are considered, based on known channel quality indicators (CQIs). The first one assumes that MS always communicates with base station (BS) with the best CQI, while the second MD scheme is proposed in this paper and it assumes that MS switches to another BS if its CQI is 2 levels above the current one. Using mmWave module in the ns-3 simulator, we model three real-case scenarios for downlink (DL) communications at 28GHz and 73GHz bands, in outdoor environment. The obtained results for data rate clearly show that implementation of the proposed MD schemes leads towards significant performance improvement of mmWave cellular systems.
Date of Conference: 05-07 July 2017
Date Added to IEEE Xplore: 23 October 2017
ISBN Information:
Conference Location: Barcelona, Spain

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