Differential　code-shifted　reference　(DCSR)　transceiver　is　a　recently　developed　pulse-based　Ultra-Wideband　(UWB)　technology　aiming　at　low-complexity　and　low-power　consumption　wireless　communication　applications.　As　compared　to　the　traditional　coherent　receiver,　the　DCSR　receiver　does　not　need　to　estimate　the　waveform　of　the　receiver　signal,　and　hence　has　a　much　lower　system　complexity.　Moreover,　the　DCSR　transceiver　separating　the　reference　and　data　pulse　sequences　with　a　set　of　shifting　and　detection　codes　selected　from　Walsh　codes,　therefore　it　does　not　need　the　delay　element　with　an　ultra　wide　bandwidth　required　by　the　traditional　transmitted　reference　transceiver.　This　paper　analyzes　the　bit-error-rate　(BER)　performance　of　the　DCSR　transceivers　with　a　code　length　of　16.　The　theoretical　expressions　for　the　BER　with　a　code　length　of　16　are　derived　and　verified　by　computer　simulation.　Furthermore,　the　performance　of　the　DCSR　transceiver　is　investigated　for　different　code　lengths.　The　results　show　that　DCSR　transceiver　with　large　code　length　gives　the　similar　BER　performance　in　multipath　channel　as　compared　to　that　with　shorter　code　length.　However　using　large　code　length　makes　the　receiver　more　susceptive　to　narrowband　interference.　©　2012　American　Scientific　Publishers.