Low-Overhead Multi-Antenna-Enabled Random Access for Machine-Type Communications with Low Mobility

A pseudo-random beamforming (PRBF) based random access (RA) system is proposed to enable uplink (UL) machine-type communications (MTC) with ultra low signaling overheads. Specifically, a pseudo random (PR) sequence is used as public information to coordinate the beamforming vectors used at the base station (BS) and the devices. Within the coherence time window, each device distributively determines in advance the ''good'' time slots and receiving beams for transmission. This UL protocol reduces the overheads due to the feedback of channel state information and the control signals for centralized scheduling. This paper derives the throughput and user scaling of the proposed M- PRBF-CA protocol for achieving spatial multiplexing gain, under both an i.i.d. slow fading channel and a correlated slow fading channel. Our simulation results confirm the analysis in both fading channel models.

[1]  Randall Berry,et al.  Distributed approaches for exploiting multiuser diversity in wireless networks , 2006, IEEE Transactions on Information Theory.

[2]  Youngchul Sung,et al.  On the Performance of Random Beamforming in Sparse Millimeter Wave Channels , 2016, IEEE Journal of Selected Topics in Signal Processing.

[3]  Won-Yong Shin,et al.  Multi-cell aware opportunistic random access , 2017, 2017 IEEE International Symposium on Information Theory (ISIT).

[4]  Alireza Bayesteh,et al.  Uplink contention based SCMA for 5G radio access , 2014, 2014 IEEE Globecom Workshops (GC Wkshps).

[5]  Risto Wichman,et al.  Performance of Quantized Random Beamforming in Delay-Tolerant Machine-Type Communication , 2016, IEEE Transactions on Wireless Communications.

[6]  Dusit Niyato,et al.  Random access for machine-to-machine communication in LTE-advanced networks: issues and approaches , 2013, IEEE Communications Magazine.

[7]  David Tse,et al.  Opportunistic beamforming using dumb antennas , 2002, IEEE Trans. Inf. Theory.

[8]  Youngchul Sung,et al.  Randomly-Directional Beamforming in Millimeter-Wave Multiuser MISO Downlink , 2014, IEEE Transactions on Wireless Communications.

[9]  Babak Hassibi,et al.  On the capacity of MIMO broadcast channels with partial side information , 2005, IEEE Transactions on Information Theory.

[10]  Bin Li,et al.  Efficient and low-overhead uplink scheduling for large-scale wireless Internet-of-Things , 2018, 2018 16th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt).