Knowledge Cluster Initiative (the 2nd stage)
Overview
Frequency shortage issue toward Ubiquitous Broadband Access
Potential technologies and their capabilities
Coding scheme
The state-of-the-art coding schemes with iterative decoding, e.g. Turbo, LDPC etc., would be able to offer about a few dB gain compared with legacy convolution coding schemes. The spectrum efficiency improvement is far from the required 17dB improvement.
Space Division Multiplexing
SDM enabled by MIMO has been received much attention for recent decade. However, the 17dB requirement necessitates a number of antennas in both BS and MS, which prevents this scheme from being a great candidate.
Small cells
We focus on this traditional approach
Picocell capability : highly bandwidth reduction by densely frequency reuse
We here assume a picocell system with comparable capacity of IMT-2000 while offering increased load being 10 times as much as that assumed for IMT-2000.
Mesh Network
MIMO-MESH node
- Original highly efficient packet forwarding protocol (IPT forwarding)
- MIMO repeater wireless for high capacity relay lines
- Large scale picocell clustering
- WiFi access capability for Local Wireless
- Ethernet connection
- Easy install and Quick launch without complex configurations