dc.contributor.advisor |
Hijjeh, Khaled |
|
dc.contributor.author |
Abu Afeefeh, Anwar |
|
dc.contributor.author |
Masri, Ameena |
|
dc.contributor.author |
Manasarh, Linda |
|
dc.contributor.author |
Sayed Ahmed, Wala |
|
dc.date.accessioned |
2019-02-14T06:54:14Z |
|
dc.date.accessioned |
2022-05-22T06:26:02Z |
|
dc.date.available |
2019-02-14T06:54:14Z |
|
dc.date.available |
2022-05-22T06:26:02Z |
|
dc.date.issued |
2011-06-01 |
|
dc.identifier.uri |
http://localhost:8080/xmlui/handle/123456789/6735 |
|
dc.description |
no of pages 172 , 25089 , اتصالات 8/2011 , in the store |
|
dc.description.abstract |
The main subject of this project is to deeply study the diversity characteristics of the
MIMO antennas, which will be adopted in 4G systems. The project discusses the
performance of Diversity in MIMO, and then it explains how diversity reception
and transmission technique is used to mitigate the effects of fading over
communication link.
The project handles Space-Time Block Coding (STBC) transmit diversity
combined with receive diversity scheme when the Channel is perfectly known to the
receiver unknown to the transmitter in order to achieve diversity in MIMO.
The results of the simulation show that the Diversity performance of N M system
using STBC improves when N or M or both increase. Orthogonality shows a great
effect on the system performance, increasing orthogonality reduced BER. Moreover
reducing the code rate has a bad impact on the system performance.
Anew Quasi-OSTBC for 16 M was introduced in this project benefitting from
known orthogonal design for STBC matrices.
Channel estimator is used to estimate channel information when the channel is
unknown to the receiver using pilot signals. |
en_US |
dc.language.iso |
en |
en_US |
dc.subject |
Diversity |
en_US |
dc.subject |
4G |
en_US |
dc.title |
Diversity in 4G |
en_US |
dc.type |
Other |
en_US |