Serially Concatenated Space-Time Coded Continuous Phase Modulated Signals
Artikel i vetenskaplig tidskrift, 2007

We investigate the detection of space time codes (STC) modulated using continuous phase modulation (CPM), in quasi-static fading channels. A symbol-by-symbol iterative detector with an optimum front-end is derived, and its reduced complexity implementation is considered. Also, we have introduced several full-rank STC-CPM systems, constructed by combining full-diversity STCs with simple, widely-used CPM schemes, and introducing a small frequency offset. According to the simulation results, the bit error rate (BER) performance of the detector for quasi-static fading is around 1 dB from the case without fading. Furthermore, a comparison of the performance of the proposed detector with results from previous work on STCCPM showed an improvement in the range of 2-3 dB. Moreover, the detector is robust to the errors in estimating the channel state information (CSI), which is a desirable feature for practical implementation.

fading channels

Continuuous phase modulation

iterative detection

space time codes

Författare

Dhammika Bokolamulla

Chalmers, Data- och informationsteknik, Datorteknik

Tor Aulin

Chalmers, Data- och informationsteknik, Datorteknik

IEEE Transactions on Wireless Communications

1536-1276 (ISSN)

Vol. 6 3487-3492

Ämneskategorier

Telekommunikation

DOI

10.1109/TWC.2007.051004