Adaptive Modulation and Power Allocation for OSTBC
2009 (English)In: ICICS 2009 - Conference Proceedings of the 7th International Conference on Information, Communications and Signal Processing: Macau Fisherman's Wharf: 8 December 2009 through 10 December 2009, 2009Conference paper (Refereed)
Adaptive modulation and power allocation schemes have been widely used in multiple-input multiple-output(MIMO) systems to enhance spectral efficiency while maintaining bit error ratio (BER) to a target level. We derivethe spectral efficiency of orthogonal space-time block codes (OSTBC) that can be achieved by applying adaptivemodulation and power allocation. Compared to non-adaptive power scheme, the adaptive power allocation canachieve substantial gain in the spectral efficiency. Moreover, channel estimation errors are taken into account andthe impact on the spectral efficiency is investigated.
Place, publisher, year, edition, pages
Adaptive modulation; Adaptive power allocation; MIMO; OSTBC
IdentifiersURN: urn:nbn:se:kth:diva-9799DOI: 10.1109/ICICS.2009.5397730ScopusID: 2-s2.0-77949627444OAI: oai:DiVA.org:kth-9799DiVA: diva2:133052
QC 20100812. Uppdaterad från submitted till konferensbidrag (20100812).2009-01-072009-01-072010-08-12Bibliographically approved