Joint　transmitter　and　receiver　modulation　(JSM)　is　a　promising　spatial-domain　modulation　scheme,　which　is　capable　of　enhancing　the　spatial　diversity,　as　well　as　the　spatial　multiplexing　gain　for　the　modulated　multiple-input　multiple-output　(MIMO)　systems.　In　this　piece　of　paper,　in　order　to　generalize　the　JSM　for　arbitrary　size　MIMOs,　we　propose　and　investigate　a　novel　joint　transmit　and　receive　spatial　pattern　grouping　based　JSM　(SPG-JSM),　which　is　enabled　by　RF　mirrors　configured　around　transmit　antennas.　To　provide　the　proposed　SPG-JSM　with　further　enhanced　spatial　diversity,　a　SPG　associated　alternative　null-space　beamforming　(ANB)　strategy　is　introduced　for　accomplishing　the　transmitter　preprocessing.　In　addition　to　the　classical　maximum-likelihood　detection　(MLD),　we　design　a　ratio　sorting　assisted　low-complexity　detection　(RS-LCD)　scheme　to　decrease　the　implementation　cost　at　the　receiver.　Furthermore,　we　analyze　the　capacity,　error　performance,　and　the　spatial　diversity　achievable　by　the　proposed　SPG-JSM,　provided　that　the　MLD　is　exploited　at　the　receiver.　Simulation　outcomes　are　characterized　to　demonstrate　the　advantages　of　our　novel　SPG-JSM,　and　to　validate　the　analytical　performance　derivations.　©　2022　Elsevier　Inc.