Spatial modulation was proposed few years back to achieve a higher data rate and solving the major problems in multiple-input multiple-output (MIMO) systems. This was made possible just by using spatial dimension to convey information together with the transmitted signal. However, the spatial dimension of the constellation dimension is also used to select the active antenna per transmission instant. Thus, made the use of single antenna per transmission instant possible resulting in the use of single RF chain. This eliminate the need for antenna synchronization since only one antenna is active at a time so the antennas don’t need to synchronize before transmission. Also this eliminate inter-channel interference and inter-symbol interference since only one symbol is transmitted at each time slot.
In this article I will be going through signal vector base detector (SVD) but before you proceed with this article, kindly go through spatial modulation first to really understand the scheme very well. Also, you can go through the brief performance analysis too
The bit error probability for 4 – QAM system will be analysed in this article to the close form of expression. Using moment generating function M_γ given by the equation shown below, we can evaluate out Pb which in this case is our bit error probability.
The theoretical analysis of spatial modulation will be computed in this article but I will be brief as possible for more detailed analysis with the code kindly buy by clicking here.
The overall bit error probability of spatial modulation system can be computed using the lower bound approach:
The theoretical analysis of symbol error rate of a 4-QAM system will be computed in this article. Kindly note that only 4-QAM is considered in this article.
A MIMO system can simply be defined as a transmission system equipped with various number of transmit antenna of at least two antennas and receive antennas great than one minimum of two. They are widely used in radio frequency technology (RF) such as in Wi-Fi, Long term evolution (LTE) and so on.
In this article, the derivation for 16-QAM SER in AWGN will be computed using alternative form of Q-function. The exact symbol error probability for square M-QAM in AWGN channel is given by:
The derivation for 4-QAM SER in Rayleigh fading channel will be computed in this article, using alternative form of Q-function. The exact symbol error probability for square M-QAM in AWGN channel is given by:
The analysis of Rayleigh fading channel using the pairwise error probability will be computed in this article.
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