Combining Transmit Antenna Weights with Orthogonal Space-Time Block Coding
1999 (English)In: Proceedings Nordiskt radioseminarium 1999, 1999Conference paper (Other academic)
Multiple transmit and receive antennas can be used in wireless systems to acheive high data rate communications. Recently, space-time codes have been developed that utilize some of the capacity available. These codes are developed under the assumption that the transmitter has no knowledge about the channel. However, we consider the case when the transmitter has partial, but not perfect, knowledge about the channel and how toadjust the antenna weights at the transmitter. A criterion is derived that optimally determines the transmit antenna weights when well known block orthogonal space-time codes are used. Simulation results using two transmit antennas are included to demonstrate the performance.
Place, publisher, year, edition, pages
data rate, Multiple antennas, orthogonal space-time codes, antenna weights, knowledge about the channel
IdentifiersURN: urn:nbn:se:kth:diva-92538OAI: oai:DiVA.org:kth-92538DiVA: diva2:513552
Nordiskt radioseminarium (NRS) 1999
NR 201408052012-04-022012-04-022012-04-02Bibliographically approved