ABSTRAKSI: Komunikasi sudah menjadi suatu kebutuhan dan memegang peranan penting dalam kehidupan masyarakat saat ini. Banyaknya jenis kebutuhan pasar dalam bidang telekomunikasi sering kali tidak diimbangi dengan peningkatan kualitas layanan. Salah satu cara untuk mendapatkan level layanan yang dirasakan oleh pelanggan GSM adalah dilakukan analisis terhadap kuat sinyal yang diterima oleh pelanggan GSM dari BTS service.
Efek multipath fading pada seluler tidak dapat dihilangkan. Metode Cooperative Signal Detection dapat disimulasikan berdasarkan kondisi kanal propagasi, yaitu kondisi kanal propagasi Line of Sight, Cost 231-Hatta untuk daerah kota kecil dan menengah, Cost 231-Hatta untuk daerah kota besar.
Dari hasil analisis didapatkan user yang berada di tepi sel mendeteksi adanya penurunan daya pancar dari BTS service serta meningkatnya daya pancar dari BTS tetangga. Kinerja deteksi sinyal bersamaan merupakan kinerja dari dua buah BTS service dengan mengambil rata-rata RSL dari dua buah BTS service. Selisih loss propagasi antara kota kecil dan menengah dengan kota besar tidak lebih dari 5 dBm. Handover terjadi karena Received Signal Level yang diterima oleh MS sudah berada dibawah ambang batas maksimum RSL yang diperbolehkan dalam GSM 1800 yaitu -110 dBm.Kata Kunci : Cooperative Signal Detection, multipath fading, Line of Sight, Received Signal Level.ABSTRACT: Communication has become a necessity and plays an important role in public life today. This wide variety of market needs in the telecommunications sector are often not matched by an increase in service quality. One way to get the level of service that is felt by a GSM subscriber is carried out analysis of the received signal strength from Base Stations service to GSM Mobile Stations.
The effect of multipath fading in cellular can't be completely removed from the system. Cooperative Signal Detection method can be simulated based on propagation channel, such as Line of Sight, Cost 231-Hatta for small and medium city, Cost 231-Hatta for large city.
From the analysis, user who is on the edge of the cell detects a decrease in transmit power from the BTS service and the increased transmit power from neighboring BTS. Performance of cooperative signal detection between two BTS services by taking the average of RSL from two BTS services. Difference in propagation loss between small and medium-sized city with large city no more than 5 dBm. Handover happens because Received Signal Level which is accepted by Mobile Station is under the threshold -100 dBm that is permitted by GSM 1800.Keyword: Cooperative Signal Detection, multipath fading, Line of Sight, Received Signal Level.