Analysis of Self-body Blocking Effects in Millimeter Wave Cellular Networks
Tianyang Bai and Robert W. Heath, Jr.
In Proc. of IEEE Asilomar Conf. on Signals, Systems, and Computers, Nov. 2014.
The millimeter wave (mmWave) spectrum is a strong
candidate carrier frequency for access channels in fifth generation
cellular networks. Unfortunately, the human body heavily
attenuates mmWave signals. This paper evaluates the impact
of self-body blocking (the blocking of the direct link by the
handset userís body) in mmWave cellular networks using a
stochastic geometric network model. A mathematical model for
self-body blocking is proposed, allowing for position changes, and
used to compute signal-to-interference-plus-noise ratio (SINR)
distributions with two possible user association rules. The results
characterize how self-body blocking impacts the SINR coverage.
Even including self-body blocking, mmWave cellular systems can
still outperform convention systems at lower frequencies, in terms
of the achievable rate, due to the larger bandwidth.