A Symbol Estimation Scheme for Alamouti Coded OFDM Systems
White Papers In Alamouti coded OFDM systems, the simple decoding at the receiver relies on the assumption that the subchannels are flat fading, decoupled, and quasi-static so that each subchannel does not change over an Alamouti codeword period (two...
[April 11, 2007, 1:01]
Performance of Joint Detection Techniques for Coded MIMO-OFDM and MIMO-MC-CDM
White Papers This paper considers a coded transmission over a time-invariant MIMO channel where channel state information is present at the receiver but not at the transmitter. As basic modulation technique OFDM is applied.
[November 2, 2004, 2:00]
On Cyclic Delay Diversity in OFDM Based Transmission Schemes
White Papers This paper investigates CDD for uncoded and coded transmission and show how the inserted diversity can be exploited. But in contrast to that there is no additional effort in the receiver necessary, since the different codewords result in a changed...
[March 25, 2008, 7:41]
Bristol Pocket A-Z Map
Downloads Major buildings are colour-coded to indicate places of interest and other buildings that are open to the public.KEY FEATURESGPSConnect a GPS receiver to show your location as well as direction and speed of travel.Automatic map selectionIf multiple...
[June 1, 2004, 8:00]
Constant Envelope OFDM With Channel Coding
White Papers A bound on the performance of convolutionally coded CE-OFDM is derived and is plotted along side the performance curves obtained through simulation. The noise at the output of the phase demodulator (in the CE-OFDM receiver) is shown to be...
[April 11, 2007, 1:01]
Slow Subcarrier-Hopped Space Division Multiple Access OFDM Systems
White Papers In this paper the authors devise a Turbo Trellis Coded Modulation (TTCM) assisted subcarrier-based FH/SDMA-OFDM scheme, which may be able to fully exploit the attainable frequency diversity, while exhibiting a high Multi-User-Interference (MUI...
[April 11, 2007, 1:01]
A-Z Mini London Street Atlas
Downloads Major buildings are colour-coded to indicate places of interest and other buildings that are open to the public.KEY FEATURESGPSConnect a GPS receiver to show your location as well as direction and speed of travel.Automatic map selectionIf multiple...
[September 10, 2005, 8:00]
Grand theft auto, the high-tech way
News First introduced in the 1980s, modern remote keyless entry systems use a circuit board, a coded radio-frequency identification (RFID) technology chip, a battery and a small antenna. If the synced-up receiver gets the 40-bit code it is expecting...
[May 8, 2006, 15:10]
