A cognitive spatial multiplexing scheme for MIMO-CDMA networks

Y Xiao, K Kim, G Qu - IET 3rd International Conference on …, 2010 - ieeexplore.ieee.org
The existing cognitive schemes have not considered cognitive spatial multiplexing (CSM) for
MIMO-CDMA network, there are three vital problems to hinder CSM's application: spatial …

Spatial multiplexing algorithms of cognitive base-stations

Y Xiao, Y Zhang, G Qu, K Kim - 2010 - IET
The existing cognitive network can not provide the spatial sectors for a cell, since the base-
station (BS) has one omnidirectional antenna. Thus it is impossible for a base-band channel …

MIMO spatial multiplexing systems with uplink pilot and LDPC codec

Y Xiao, J Liu, H Yin, K Kim - 2009 5th International Conference …, 2009 - ieeexplore.ieee.org
This paper investigates two problems of transmit beamforming in MIMO spatial multiplexing
(SM) systems: 1. remove the feedback for channel estimation of mobile stations; 2. remove …

[PDF][PDF] Cooperative spatial multiplexing for CR users sharing a common channel with primary users

Y Xiao, J Kou - Proceedings of the International Conference on …, 2013 - wseas.com
To enable mobile stations (MSs) of secondary users (SUs) in cognitive radio (CR) networks
sharing a common channel with MSs of primary users (PUs) is an important but challenging …

A simplified cooperative spatial multiplexing scheme of MIMO-CDMA networks

Y Xiao, K Kim, G Qu - IEEE 10th INTERNATIONAL …, 2010 - ieeexplore.ieee.org
The existing cooperative spatial multiplexing (CSM) schemes for MIMO-CDMA network have
four vital problems to hinder CSM's application: exact synchronization among the mobile …