Competitive Advantages
- Compared to conventional beamspace MIMO, numerical results show that the DSM technique can provide more than 50% spectral efficiency enhancement at high signalto noise ratio (SNR)
- Such method can be advantageous in systems where the transmitter needs to be low cost while the receiver can have more complex hardware
- Using the proposed method, the communication network can provide higher speeds of uplink data, or it can simply allow reuse of the extra uplink resources for some other purpose. The approach is clearly a good method for cost efficient design of internet of things (IoT) devices which makes frequent data uploads to a server
Summary
Despite the advantages of the studies, the conventional transmitter systems should provide at least the same number of transmitting beams and RF chains as the number of multipath streams. To relieve the system from this constrain, inventor proposes a novel multiplexing method, called Dynamic Sidelobes Multiplexing (DSM), that allows additional data streams to be multiplexed and reconstructed. The main contribution of the proposed DSM method is to introduce additional receiver beams to open new paths to receive the additional streams that is transmitted under the main signal. Beamspace MIMO provides cost-effective and simple hardware designs for millimeter-wave (mmWave) systems. However, the number of users/streams that can be supported at the same time-frequency resource is limited to the number of radiofrequency (RF) chains. In this study, to overcome this restriction, dynamic sidelobe multiplexing (DSM) algorithm is proposed. The proposed multiplexing technique precodes the transmitted data over transmitter beams in order to open up a new path to the receiver. Therefore, the proposed method provides an opportunity to exceed the limits of conventional hardware usage in beamspace MIMO. The numerical results show that the proposed approach enhance the system performance for more than 50% compared to conventional.
System model for beamspace MIMO architecture
Desired Partnerships
- License
- Sponsored Research
- Co-Development