Coordinated multiple points transmission for LTE-advanced systems
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Evolution map from TD-SCDMA to FuTURE B3G TDD
IEEE Communications Magazine
Multiuser OFDM with adaptive subcarrier, bit, and power allocation
IEEE Journal on Selected Areas in Communications
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As the wireless access technology evovles to wider and wider bandwidth, Orthogonal Frequency Division Multiplex (OFDM) becomes the fundamental technology component to provide efficient data transmission. However, compared to Code Division Multplex Access (CDMA), OFDM has no capability to mitigate the intercell interference though it can provide orthogonality among the intracell users. To build a cellular network and guarantee the user experience at the cell edge, some additional technology components, like interference coordination or interference mitigation, are necessary for OFDM based wireless system, where intercell interference is the main contribution to the performance degradation at the cell edge. To deal with the intercell interference, many techniques can be adopted for different perspectives. This paper overviews such technologies based on the LTE framwork, some new interference mitigation technologies are simulated for LTE-Advanced, which can improve the cell edge performance of LTE-advanced effectively.