Mustafa Alshawaqfeh 0001 Ammar Gharaibeh Raed Mesleh Tree-Search-Based Optimal and Suboptimal Low Complexity Detectors for Differential Space Shift Keying MIMO System. 1980-1991 2023 March 22 IEEE Trans. Wirel. Commun. 3 https://doi.org/10.1109/TWC.2022.3208079 db/journals/twc/twc22.html#AlshawaqfehGM23