| Publication Title Name : | Digital communications: Spread spectrum multiple access techniques/ |
| Publication year : | Thesis 1982 |
| Publication Address : | El-Khamy,Farouk El-Sayed Ismail. |
| Main Category : | Engineering |
| Main & Sub Category : | 621 الفيزياء التطبيقية - Electrical Engineering |
| Vol : | - |
| Dewey Decimal Classification (DDC)No : | - |
| Article Title : | Digital communications: |
| Statement of responsibility : | Farouk El-Sayed Ismail El-Khamy;supervised by Ibrahim A.Mandour,Said E.El-Khamy. |
| Place of publication : | Alexandria : |
| Name of publisher : | Farouk El-Sayed Ismail El-Khamy, |
| Date of publication : | 1982 . |
| Publication Extent : | 171p.: |
| Publication Dimensions : | 30cm. |
| Topical term : | - |
| Leader : | Electrical Engineering. |
| ISBN : | - |
| Original BibID : | 00000naa#a2200000uu#4500 |
| Date and time of last modification : | 10386972 |
| General informatio : | 621.3 Spread spectrum multiple access techniques/2)21 a)621.3/a)171p.: b)ill.; c)30cm./ a)Incl.Appendices&references. a)Electrical Engineering./ A.Mandour,Ibrahim . / supervisor/a)A.Mandour,Ibrahim . e)supervisor FLS a)eng/E.El-Khamy,Said . / supervisor/a)E.El-Khamy,Said . e)supervisor/ الاتصالات الرقمية: / طرق الاتصالات ذات الطيف الموسع متعددة الموصل=/Fac.of Eng.Dep.of Electrical Engineering,/a)الاتصالات الرقمية: b)طرق الاتصالات ذات الطيف الموسع متعددة الموصل=/Thesis(M.SC)Alex-UN.Fac.of Eng.Dep.of Electrical Engineering. Spread spectrum techniques are treated in this thesis as a new class of digital communications. In particural,the application of spread spectrum techniques to multiple—access systems using code—division multiplexing (CDM) is investigated. These techniques have great advantages in the presence of jamming and interference and are suitable for military applications. The main subject treated in this thesis is the optimization of the code sequences used in direct—Sequence spread spectrum multiple access systems (DS—SSMA)•In particular,sets of m—sequ ences and Gold sequences are treated. For multiple—access syst ems with limited number of users the optimum codes are shown to be specially selected maximal connected sets of m—sequences. While for large number of users, optimized sets of Gold codes are used. Numerical examples are presented which yield the optimum codes, their correlation parameters and their performance in SSMA systems. Field experimental results that show the great advantages of spread spectrum systemsin jamming enviroments are also presented. a)Thesis(M.SC)Alex-UN.Fac.of Eng.Dep.of Electrical Engineering. a)Spread spectrum techniques are treated in this thesis as a new class of digital communications. In particural,the application of spread spectrum techniques to multiple—access systems using code—division multiplexing (CDM) is investigated. These techniques have great advantages in the presence of jamming and interference and are suitable for military applications. The main subject treated in this thesis is the optimization of the code sequences used in direct—Sequence spread spectrum multiple access systems (DS—SSMA)•In particular,sets of m—sequ ences and Gold sequences are treated. For multiple—access syst ems with limited number of users the optimum codes are shown to be specially selected maximal connected sets of m—sequences. While for large number of users, optimized sets of Gold codes are used. Numerical examples are presented which yield the optimum codes, their correlation parameters and their performance in SSMA systems. Field experimental results that show the great advantages of spread spectrum systemsin jamming enviroments are also presented./td###|rm####000#0#/ |
| Cataloging Source : | 20090726102533.0 |
| DDC No : | - |
| Personal Name : | a)Alexandria : b)Farouk El-Sayed Ismail El-Khamy, b)Fac.of Eng.Dep.of Electrical Engineering, c)1982 . |
| Publication data field : | a)El-Khamy,Farouk El-Sayed Ismail. |
| physical descripti : | a)Digital communications: b)Spread spectrum multiple access techniques/ c)Farouk El-Sayed Ismail El-Khamy;supervised by Ibrahim A.Mandour,Said E.El-Khamy. |
| Topical term : | - |
| Language Code : | 090711p1982 ua|d###frm####000#0#eng|d a)EG EULC |
| Additional input : | - |
| Author Name : | El-Khamy,Farouk El-Sayed Ismail. |