Details

Autor(en) / Beteiligte

• Timus, B.

Titel

Coverage Costs of One Amplify-and-Forward Relaying in Outdoors Urban Environment

Ist Teil von

• 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006, p.1-5

Ort / Verlag

IEEE

Erscheinungsjahr

2006

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• The use of fixed relays has previously been shown to enhance the performance of cellular systems, e.g. in terms of improved bit-rate CDFs. Under the assumption that these relays are inexpensive, it has been argued that cellular-relaying architectures can provide high bit-rate services at low infrastructure costs. This paper addresses the question of how inexpensive must a relay be, by converting the performance gains of the relaying architecture into cost constraints. The analysis is numerically exemplified on a study case where 95% downlink outdoor coverage must be provided in an urban environment. The relays are (randomly) placed on lamp-posts along streets. The transmission power, height and gain of the base station antennas, and the complexity of the relaying scheme are used to model the cost-performance trade-off. In this coverage study case, the relay to base station cost ratio must be at most 2 - 15%, depending on the above parameters' values. In the numerical examples, the relaying scheme type has much smaller impact on the cost ratio constraint than the base station antenna height and gain