Krahasoni metodat

	Ortogonal Freguencë-Divizion Multiplexing (OFDM)	Teorema e Kapasitetit të Kanalit të Shannonit
Fusha	Telekomunikacionet	Telekomunikacionet
Familja	Process / pipeline	Process / pipeline
Viti i origjinës	1971	1948
Krijuesi	Weinstein and Ebert	Claude Shannon
Lloji	multicarrier modulation scheme	fundamental theoretical bound
Burimi themelues	Weinstein, S. B., & Ebert, P. M. (1971). Data transmission by frequency-division multiplexing using the discrete Fourier transform. IEEE Transactions on Communication Technology, 19(5), 628-634.	Shannon, C. E. (1948). A mathematical theory of communication. Bell System Technical Journal, 27(3), 379-423.
Emërtime të tjera	multicarrier modulation	channel capacity, information theory bound
Të lidhura	5	5
Përmbledhja	OFDM is a multicarrier modulation technique that divides a wideband channel into many narrowband orthogonal subcarriers. Introduced by Weinstein and Ebert in 1971, it exploits the duality between time and frequency domains to efficiently use spectrum while mitigating intersymbol interference in frequency-selective channels. OFDM is now the standard for high-speed wireless systems including WiFi, cellular LTE, and digital broadcasting.	Shannon's channel capacity theorem, published in 1948, establishes the maximum rate at which information can be reliably transmitted over a noisy channel. Expressed as C = B log2(1 + S/N) for additive white Gaussian noise (AWGN), it is a fundamental bound in information theory and communications engineering. Shannon proved that reliable communication is possible at any rate below capacity, and impossible above it. This theorem underpins the design of all modern communication systems and motivates coding theory, modulation, and signal processing techniques.