Performance evaluation of channel estimation techniques

47,40 €

49,90 €


Frais d'envoi limités à 4,90 € pour la France métropolitaine quel que soit le nombre d'articles. Délai de livraison : 2 à 5 jours.
Livraison dans le monde entier.

for an LTE downlink system

The downlink physical shared channel contains the scrambler, the modulation mapping, the pre coder, layer mapping, resource element mapping and OFDM signal generator.

This receiver processing starts from the OFDM signal reception and continuing through resource element de-mapping, channel estimation, Equalization, layer de-mapping, demodulation, descrambling, channel decoding and finally CRC detector.

The resource grid is made up of several resource blocks and these are in turn made from resource elements.

Even the resource element is made up of one OFDM subcarrier in frequency domain and one OFDM symbol in time domain.

As can be seen from figure 2.4 the resource grid contains control and data information signals.

These control signals are the user data, data control indicator (DCI), primary synchronization symbol (PSS), secondary synchronization symbol (SSS), primary matrix indicator (PMI), and cell specific reference symbol (CSR).

The user data Physical Downlink Shared Channel (PDSCH), the Physical Downlink Control Channel (PDCCH) and CSR are placed in every sub frame of a resource grid.

The PSS and SSS are placed in frames 0 and 5 at specific OFDM symbol.

Plus de détails

Envoi en courrier suivi.
Livraison sous 2 à 4 jours en France et dans le monde entier.
Programme de fidélité
Votre panier totalisera 4 points fidélité vous offrant lors de votre prochain achat une réduction de 2,00 €
Avis clients
Soyez le premier à partager votre avis sur ce produit