In　this　paper,　we　propose　a　multi-carrier　initial-condition-index-aided　differential　chaos　shift　keying　(MC-ICI-DCSK)　scheme　tailored　for　multipath　fading　channels.　In　the　proposed　scheme,　the　ICI　bits　are　carried　by　the　index　of　the　initial　condition　of　the　chaotic　sequences　while　the　modulated　bits　are　carried　by　positive/negative　state　of　the　chaotic　signal.　To　adapt　the　ICI　method　for　multipath　fading　channels,　we　design　a　cross-correlation-value-based　detection　scheme　for　ICI　detection.　In　this　detection　scheme,　multiple　carriers　can　be　combined　for　ICI　detection.　Meanwhile,　ICI　and　modulated　bit　detections　remain　independent　of　each　other.　The　theoretical　bit-error-rate　(BER)　expression　of　MC-ICI-DCSK　scheme　is　derived　over　multipath　Rayleigh　fading　channels.　Furthermore,　the　data　rate,　spectral　efficiency,　energy　efficiency,　and　complexity　of　the　proposed　scheme　are　analyzed.　Simulation　results　not　only　verify　the　accuracy　of　the　theoretical　analysis,　but　also　demonstrate　the　superiority　of　the　proposed　MC-ICI-DCSK　scheme.　Consequently,　the　proposed　MC-ICI-DCSK　can　be　deemed　to　be　a　promising　scheme　for　low-power　and　low-cost　short-range　wireless　communications.　©　1967-2012　IEEE.