Extension of the Coverage Region of Multiple Access Channels by Using a Relay | ||
| Journal of Communication Engineering | ||
| مقاله 1، دوره 4، شماره 1 - شماره پیاپی 8، فروردین 2015، صفحه 1-20 اصل مقاله (642.98 K) | ||
| شناسه دیجیتال (DOI): 10.22070/jce.2016.324 | ||
| نویسندگان | ||
| Ehsan Moeen Taghavi؛ Ghosheh Abed Hodtani* | ||
| چکیده | ||
| From practical and theoretical viewpoints, performance analysis of communication systems by using information-theoretic results is important. In this paper, based on our previous work on Multiple Access Channel (MAC) and Multiple Access Relay Channel (MARC), we analyze the impact of a relay on the fundamental wireless communications concept, i.e., coverage region of MARC, as a basic model for uplink communications between a base station and users with the help of a relay. This analysis includes the coverage region for the MAC as a special case. Considering rate regions for the Gaussian MARC and fading Gaussian MARC, it is proved that in a fixed transmission rate, the relay extends coverage region of the MARC. Numerical illustrations confirm our theoretical results. | ||
| کلیدواژهها | ||
| multiple access relay channel؛ Coverage region؛ Fixed desired transmission rates؛ Cellular network | ||
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آمار تعداد مشاهده مقاله: 696 تعداد دریافت فایل اصل مقاله: 1,571 |
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