Techniques

Coded-Modulation Techniques for Fading Channels - download pdf or read online

By S. Hamidreza Jamali, Tho Le-Ngoc (auth.)

ISBN-10: 1461361761

ISBN-13: 9781461361763

ISBN-10: 1461527287

ISBN-13: 9781461527282

Coded-Modulation thoughts for Fading Channels offers the reader with a legitimate historical past for the applying of bandwidth-efficient coded-modulation recommendations in fading channels. The ebook systematically provides contemporary advancements within the box, which has grown speedily in recent times, and offers an exceptional body of reference for extra study during this zone.
up to now decade there was a proliferation of study within the sector of bandwidth-efficient coded-modulation suggestions. the first benefit of those schemes over modulation schemes utilising conventional blunders correcting codes is their skill to enhance the functionality of the communique method with no bandwidth growth. This estate makes them an appropriate selection for channels that are constrained in either energy and bandwidth. a customary instance of such channels is a cellular satellite tv for pc channel, the place it really is wanted to accommodate loads of clients in a given bandwidth with an influence that is limited via the actual dimension of the satellite tv for pc and by means of the vehicle's antenna.
Coded-Modulation recommendations for Fading Channels is a wonderful reference for researchers and practising engineers, and should be used as a textual content for complicated classes at the topic.

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Extra info for Coded-Modulation Techniques for Fading Channels

Example text

4). To compute the error probability we first obtain the error probability conditioned on the fading amplitude a. This can be done easily by substituting a2 Es instead of Es in the expressions that we previously derived for the error probability in the AWGN channel. Averaging the conditional error probability over the probability density function of the fading amplitude yields the error probability in the flat fading channel. 2 Consider the BPSK signaling over a Rayleigh Hat fading channel. 14).

To evaluate the performance of MPSK signaling in the AWGN channel we derive upper and lower bounds on Pe [120]. 10. j2No ) + Pr{r E 12 I so} ({2E;. (7r)) = •2Q VNo sm M . sm(M7r)) . 10: Illustration of decision regions used for computing error bounds of MPSK signals: a) lower bound, b )upper bound. 5 (~ sin(k)) . PERFORMANCE OF SOME MODULATION TECHNIQUES ON FADING CHANNELS Using the results of the preceding section, the performance of the modulation schemes in a flat fading channel can be obtained.

The order of time diversity provided by a code can be related to its minimum Hamming distance if maximum likelihood soft-decision decoding is considered (see Chapters 5 and 7). 6 ERROR BOUND AND CUT-OFF RATE OF CODED SCHEMES To evaluate the error performance of a specific coded scheme, knowledge of the specific code and signal set is required. Exact expressions for the probability of error, in general, involve multidimensional integrals, which are complex to calculate. Upper bounds are hence developed [17], [3], which are applicable to any signal set.

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Coded-Modulation Techniques for Fading Channels by S. Hamidreza Jamali, Tho Le-Ngoc (auth.)


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