Path diversity for FFH/PSK spread-spectrum communication systems
A fast frequency hopping (FFH) method which uses path-diversity combining is proposed. Diversity techniques are realized when a signal is received from diverse independent paths, each of which carries identical information but suffers from independent fading variations. The improvement of communicat...
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| Veröffentlicht in: | IEEE journal on selected areas in communications 1994-06, Vol.12 (5), p.970-975 |
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| container_end_page | 975 |
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| container_issue | 5 |
| container_start_page | 970 |
| container_title | IEEE journal on selected areas in communications |
| container_volume | 12 |
| creator | Murata, Y. Esmailzadeh, R. Takakusaki, K. Sourour, E. Nakagawa, M. |
| description | A fast frequency hopping (FFH) method which uses path-diversity combining is proposed. Diversity techniques are realized when a signal is received from diverse independent paths, each of which carries identical information but suffers from independent fading variations. The improvement of communication performance of FFH systems is possible as the delayed paths are used and path-diversity combination is realized. The advantages of this method, operating in Rayleigh fading channels are confirmed by theoretical analyses. The improvement is in order of 2/spl sim/3 dB at bit error rate (BER) of 10/sup -3/. This method can be also effective against interferences from other users in a code division multiple access (CDMA) environment. The performance of this system in a CDMA environment is evaluated by theoretical analyses and is shown to be superior to non-combining method. At BER of 10/sup -3/ the required E/sub b//N/sub 0/ of the proposed system is 5 dB lower. If E/sub b//N/sub o/ is fixed, a greater number of users can be accommodated using the proposed system.< > |
| doi_str_mv | 10.1109/49.298071 |
| format | Article |
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Diversity techniques are realized when a signal is received from diverse independent paths, each of which carries identical information but suffers from independent fading variations. The improvement of communication performance of FFH systems is possible as the delayed paths are used and path-diversity combination is realized. The advantages of this method, operating in Rayleigh fading channels are confirmed by theoretical analyses. The improvement is in order of 2/spl sim/3 dB at bit error rate (BER) of 10/sup -3/. This method can be also effective against interferences from other users in a code division multiple access (CDMA) environment. The performance of this system in a CDMA environment is evaluated by theoretical analyses and is shown to be superior to non-combining method. At BER of 10/sup -3/ the required E/sub b//N/sub 0/ of the proposed system is 5 dB lower. If E/sub b//N/sub o/ is fixed, a greater number of users can be accommodated using the proposed system.< ></description><identifier>ISSN: 0733-8716</identifier><identifier>EISSN: 1558-0008</identifier><identifier>DOI: 10.1109/49.298071</identifier><identifier>CODEN: ISACEM</identifier><language>eng</language><publisher>IEEE</publisher><subject>Bit error rate ; Communication systems ; Delay ; Diversity reception ; Fading ; Interference ; Multiaccess communication ; Phase shift keying ; Rayleigh channels ; Spread spectrum communication</subject><ispartof>IEEE journal on selected areas in communications, 1994-06, Vol.12 (5), p.970-975</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c277t-62782eee9a109c4ab7d0750167e521e687487026119e0fbb8e22b5150f50c1ad3</citedby><cites>FETCH-LOGICAL-c277t-62782eee9a109c4ab7d0750167e521e687487026119e0fbb8e22b5150f50c1ad3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/298071$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/298071$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Murata, Y.</creatorcontrib><creatorcontrib>Esmailzadeh, R.</creatorcontrib><creatorcontrib>Takakusaki, K.</creatorcontrib><creatorcontrib>Sourour, E.</creatorcontrib><creatorcontrib>Nakagawa, M.</creatorcontrib><title>Path diversity for FFH/PSK spread-spectrum communication systems</title><title>IEEE journal on selected areas in communications</title><addtitle>J-SAC</addtitle><description>A fast frequency hopping (FFH) method which uses path-diversity combining is proposed. Diversity techniques are realized when a signal is received from diverse independent paths, each of which carries identical information but suffers from independent fading variations. The improvement of communication performance of FFH systems is possible as the delayed paths are used and path-diversity combination is realized. The advantages of this method, operating in Rayleigh fading channels are confirmed by theoretical analyses. The improvement is in order of 2/spl sim/3 dB at bit error rate (BER) of 10/sup -3/. This method can be also effective against interferences from other users in a code division multiple access (CDMA) environment. The performance of this system in a CDMA environment is evaluated by theoretical analyses and is shown to be superior to non-combining method. At BER of 10/sup -3/ the required E/sub b//N/sub 0/ of the proposed system is 5 dB lower. If E/sub b//N/sub o/ is fixed, a greater number of users can be accommodated using the proposed system.< ></description><subject>Bit error rate</subject><subject>Communication systems</subject><subject>Delay</subject><subject>Diversity reception</subject><subject>Fading</subject><subject>Interference</subject><subject>Multiaccess communication</subject><subject>Phase shift keying</subject><subject>Rayleigh channels</subject><subject>Spread spectrum communication</subject><issn>0733-8716</issn><issn>1558-0008</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><recordid>eNo90MFLwzAUBvAgCs7pwaunngQP3d5Lmya9KcM6ceBAPYc0fcXKutYkFfbfW-nw9A7vx8fHx9g1wgIR8mWaL3iuQOIJm6EQKgYAdcpmIJMkVhKzc3bh_RcApqniM3a_NeEzqpofcr4Jh6juXFQU6-X27SXyvSNTxb4nG9zQRrZr22HfWBOabh_5gw_U-kt2Vpudp6vjnbOP4vF9tY43r0_Pq4dNbLmUIc64VJyIcjO2tKkpZQVSAGaSBEfKlEyVBJ4h5gR1WSrivBQooBZg0VTJnN1Oub3rvgfyQbeNt7TbmT11g9dcCVQqkSO8m6B1nfeOat27pjXuoBH030Y6zfW00WhvJtuM1f7d8fkLVWRgIg</recordid><startdate>19940601</startdate><enddate>19940601</enddate><creator>Murata, Y.</creator><creator>Esmailzadeh, R.</creator><creator>Takakusaki, K.</creator><creator>Sourour, E.</creator><creator>Nakagawa, M.</creator><general>IEEE</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>19940601</creationdate><title>Path diversity for FFH/PSK spread-spectrum communication systems</title><author>Murata, Y. ; Esmailzadeh, R. ; Takakusaki, K. ; Sourour, E. ; Nakagawa, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c277t-62782eee9a109c4ab7d0750167e521e687487026119e0fbb8e22b5150f50c1ad3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><topic>Bit error rate</topic><topic>Communication systems</topic><topic>Delay</topic><topic>Diversity reception</topic><topic>Fading</topic><topic>Interference</topic><topic>Multiaccess communication</topic><topic>Phase shift keying</topic><topic>Rayleigh channels</topic><topic>Spread spectrum communication</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Murata, Y.</creatorcontrib><creatorcontrib>Esmailzadeh, R.</creatorcontrib><creatorcontrib>Takakusaki, K.</creatorcontrib><creatorcontrib>Sourour, E.</creatorcontrib><creatorcontrib>Nakagawa, M.</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE journal on selected areas in communications</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Murata, Y.</au><au>Esmailzadeh, R.</au><au>Takakusaki, K.</au><au>Sourour, E.</au><au>Nakagawa, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Path diversity for FFH/PSK spread-spectrum communication systems</atitle><jtitle>IEEE journal on selected areas in communications</jtitle><stitle>J-SAC</stitle><date>1994-06-01</date><risdate>1994</risdate><volume>12</volume><issue>5</issue><spage>970</spage><epage>975</epage><pages>970-975</pages><issn>0733-8716</issn><eissn>1558-0008</eissn><coden>ISACEM</coden><abstract>A fast frequency hopping (FFH) method which uses path-diversity combining is proposed. Diversity techniques are realized when a signal is received from diverse independent paths, each of which carries identical information but suffers from independent fading variations. The improvement of communication performance of FFH systems is possible as the delayed paths are used and path-diversity combination is realized. The advantages of this method, operating in Rayleigh fading channels are confirmed by theoretical analyses. The improvement is in order of 2/spl sim/3 dB at bit error rate (BER) of 10/sup -3/. This method can be also effective against interferences from other users in a code division multiple access (CDMA) environment. The performance of this system in a CDMA environment is evaluated by theoretical analyses and is shown to be superior to non-combining method. At BER of 10/sup -3/ the required E/sub b//N/sub 0/ of the proposed system is 5 dB lower. If E/sub b//N/sub o/ is fixed, a greater number of users can be accommodated using the proposed system.< ></abstract><pub>IEEE</pub><doi>10.1109/49.298071</doi><tpages>6</tpages></addata></record> |
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| ispartof | IEEE journal on selected areas in communications, 1994-06, Vol.12 (5), p.970-975 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Bit error rate Communication systems Delay Diversity reception Fading Interference Multiaccess communication Phase shift keying Rayleigh channels Spread spectrum communication |
| title | Path diversity for FFH/PSK spread-spectrum communication systems |
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