  Code index modulated multi-carrier M-ary differential chaos shift keying
(CIM-MC-M-DCSK) system not only inherits low-power and low-complexity
advantages of the conventional DCSK system, but also significantly increases
the transmission rate. This feature is of particular importance to Internet of
Things (IoT) with trillions of low-cost devices. In particular, for e-health
IoT applications, an efficient transmission scheme is designed to solve the
challenge of the limited battery capacity for numerous user equipments served
by one base station. In this paper, a new multiple-input-single-output
simultaneous wireless information and power transfer (MISO-SWIPT) scheme for
CIM-MC-M-DCSK system is proposed by utilizing orthogonal characteristic of
chaotic signals with different initial values. The proposed system adopts power
splitting mode, which is very promising for simultaneously providing energy and
transmitting information of the user equipments without any external power
supply. In particular, the new system can achieve desirable
anti-multipath-fading capability without using channel estimator. Moreover, the
analytical bit-error-rate expression of the proposed system is derived over
multipath Rayleigh fading channels. Furthermore, the spectral efficiency and
energy efficiency of the proposed system are analyzed. Simulation results not
only validate the analytical expressions, but also demonstrate the superiority
of the proposed system.
