Space-time coding for impulse radio

Liuqing Yang, Georgios B Giannakis

Research output: Contribution to conferencePaperpeer-review

61 Scopus citations


Impulse radio (IR) ultrawide band systems have well documented advantages for low-power peer-to-peer and multiple access communications. Space-time (ST) coding on the other hand, has gained popularity as an effective means of boosting rates and performance. Existing IR transmitters rely on a single antenna, while ST coders have so far focused on digital linearly modulated transmissions. In this paper, we develop an orthogonal ST coding scheme for the analog nonlinearly (pulse-position) modulated multi-antenna IR system. We show that the resulting analog noncoherent detector is equivalent to an existing digital ST decoder possessing maximum likelihood optimality. Simulations testing peer-to-peer and multi-access IR scenarios confirm considerable increase in both bit-error-rate performance and number of users that can be accommodated, when wedding ST coding with IR.

Original languageEnglish (US)
Number of pages6
StatePublished - 2002
Event2002 IEEE Conference on Ultra Wideband Systems and Technologies, UWBST 2002 - Baltimore, MD, United States
Duration: May 21 2002May 23 2002


Other2002 IEEE Conference on Ultra Wideband Systems and Technologies, UWBST 2002
Country/TerritoryUnited States
CityBaltimore, MD


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