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| Detectors for GLST Systems with Higher-order Modulations |
| Yang Yi-jin; Zhao Chun-ming; Shi Zhi-hua; Gong Xiao-qun |
| National Mobile Communications Research Lab, Southeast Univ., Nanjing 210096, China |
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Abstract GLST is usually used in the downlink of multi-antenna wireless communication systems to increase receiving diversity. In this paper, the transmission orthogonality is analyzed on the base of the system model. Considering that the complexity of the optimal detector is prohibitive, when a higher-order modulation is used, two algorithms are proposed based on sphere decoder to solve the problem. Simulation results show that both the proposed algorithms can approach the performance of the optimal detector.
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Received: 13 March 2006
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2007, Vol. 29 
