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Equation (8.14) is one formulation of the Friis free-space Equation (8.14) is one formulation of the Friis free-space equation. Show that this equation can also be formulated in the following equivalent forms: where Pt is the transmitted power, At is the effective area of the transmitting antenna, ? is the carrier wavelength, d is the […]

Determine the transmission bandwidth reduction and average signa Determine the transmission bandwidth reduction and average signal energy of 256-QAM, compared to 64-QAM. Is this the question you were looking for? If so, place your order here to get started!

In a single-parity-check code, a single parity bit is appended In a single-parity-check code, a single parity bit is appended to a block of k message bits (m1, m2,,.., mk,). The single parity bit b1 is chosen so that the code word satisfies the even parity ride: m1 + m2 + . . . + […]

Figure shows the block diagram of Weaver’s method for generating Figure shows the block diagram of Weaver’s method for generating SSB modulated waves. The message (modulating) signal m (t) is limited to the band A?a < |=”” a?=”” |=””>< a?b.=”” the=”” auxiliary=”” carrier=”” applied=”” to=”” the=”” first=”” pair=”” of=”” product=”” modulators=”” has=”” a=”” frequency=”” a?0,=”” […]

1. Trout Company is considering introducing a new line of pagers 1. Trout Company is considering introducing a new line of pagers targeting the preteen population. Trout believes that if the pagers can be priced competitively at $45, approximately 500,000 units can be sold. The controller has determined that an investment in new equipment totaling […]

Equation (6.47) is an approximate formula for the average probab Equation (6.47) is an approximate formula for the average probability of symbol error for coherent Mary P5K. This formula was derived using the union bound in light of the signal-space diagram of Figure b. Given that message point rn1 was transmitted, show that the approximate […]

For the feedback shift register given in Problem demonstrate For the feedback shift register given in Problem demonstrate the balance property and run property of a PN sequence. Also, calculate and plot the autocorrelation function of the PN sequence produced by this shift register. Is this the question you were looking for? If so, place […]

In a binary PCM system, symbols 0 and 1 have a priori In a binary PCM system, symbols 0 and 1 have a priori probabilities p0 and p1, respectively. The conditional probability density function of the random variable Y (with sample value y) obtained by sampling the matched filter output in the receiver of Figure […]

From the mathematical definition of the free-space loss we see From the mathematical definition of the free-space loss we see that it is dependent on the carrier wavelength A or frequency f. How can this dependence on wavelength or frequency be justified in physicalterms? Is this the question you were looking for? If so, place […]

In a satellite communication system, the carrier frequency used In a satellite communication system, the carrier frequency used on the uplink is always higher than the carrier frequency used on the downlink. Justify the rationale for this choice. Is this the question you were looking for? If so, place your order here to get started!