TL;DR: Broadband services can be best provided in rural India using wireless technology using DECT and IEEE 802.11 (WiFi), and Broadband corDECT and WiFiRe systems are, respectively, examples thereof, which have been proven in rural deployments and shown to provide a feasible solution.
Abstract: Broadband services can be best provided in rural India using wireless technology. Given modest income levels, internet-based services are accessible to most of the rural populace only through a kiosk model of delivery. Such services call for a wireless system that can provide at least 256 kbps in a sustained manner, to each of around 200 villages within a radius of 20 km from an Internet POP (Post Office Protocol). The challenge, however, is to do this at a cost per connection of under US$ 250 for the wireless equipment, in order to make the kiosk a viable business. Emerging wide-area broadband wireless technologies such as those based on the IEEE 802.16 (WiMAX) standard, when mature, may meet these performance and cost requirements. If broadband services are to be provided today, and at an affordable cost, one has to look for innovative ways of adapting low-cost, high bit-rate, and high-capacity technologies meant for local networks. Two standards that are amenable to such adaptation are DECT and IEEE 802.11 (WiFi), and Broadband corDECT and WiFiRe systems are, respectively, examples thereof. The corDECT system has been proven in rural deployments and shown to provide a feasible solution.
TL;DR: It is shown how the CorDECT system could be expanded to a 10,000-line exchange with a BHCA of over 2,10,000 calls/hour and the feasibility of implementing 64 kbps data service along with voice is investigated, it is shown that this requires modest hardware improvements.
Abstract: The traditional wired local loop used to connect telephone subscribers to the nearest exchange is expensive and unreliable. Wireless local loop (WLL) systems largely eliminate these copper wires using wireless technologies and could provide a cost effective solution. CorDECT is one such WLL system, based on the DECT (Digital Enhanced Cordless Telecommunications) standard, that provides toll-quality voice and data capability at a cost below that of a wired local loop. Using micro-cells and dynamic channel selection (DCS), it can handle high subscriber densities without frequency planning. CorDECT is gaining commercial acceptance in India and a number of other countries. Using a simple queueing network model (QNM), we find that the 1,000-line corDECT system could achieve a busy hour call attempt (BHCA) rate of 36,000 calls/hour, which is far greater than its requirement of 20,000 calls/hour. We show how the system could be expanded to a 10,000-line exchange with a BHCA of over 2,10,000 calls/hour. We also investigate the feasibility of implementing 64 kbps data service along with voice. It is shown that this requires modest hardware improvements.
TL;DR: A closed Queueing Network Model (QNM) is proposed for the corDECT system and it is shown how the system could be expanded to a 10,000-line exchange with a BHCA of over 2,10,000 calls/hr, and the feasibility of implementing 64 kbps data service along with voice.
Abstract: The traditional wired local loop used to connect each telephone subscriber to the nearest exchange is expensive and unreliable. Wireless Local Loop (WLL) systems largely eliminate these copper wires using wireless technologies and could provide a cost effective solution. corDECT is one such WLL system, based on the DECT (Digital Enhanced Cordless Telecommunications) standard, that provides toll-quality voice and data capability at a cost well below that of a wired local loop.A closed Queueing Network Model (QNM) is proposed for the corDECT system. The model is validated against actual measurements. Our model predicts that the 1,000-line corDECT system would meet a Busy Hour Call Attempt (BHCA) of 36,000 calls/hr, which is far greater than its requirement of 20,000 calls/hr. The bottlenecks that limit the BHCA to 36,000 calls/hr were identified by the model. We show how the system could be expanded to a 10,000-line exchange with a BHCA of over 2,10,000 calls/hr. We also investigate the feasibility of imple...
TL;DR: The results of a simulation study on the traffic handling capacity of a typical rural deployment of the CorDECT network involving relay base stations indicate that the relay base station can cater to the necessary traffic density in rural environments.
Abstract: This paper presents the concept and design, of a relay base station to extend the coverage of a DECT system. The various issues involved are discussed and a typical rural deployment of the CorDECT network involving relay base stations is arrived at. The results of a simulation study on the traffic handling capacity of this deployment is presented. The simulations indicate that the relay base station can, indeed cater to the necessary traffic density in rural environments.
TL;DR: CorDECT is an advanced, low-cost wireless access system that provides toll quality voice and simultaneous Internet access at 35/70 kbps in both dense, urban and sparse, rural areas.
Abstract: CorDECT is an advanced, low-cost wireless access system (WAS) that provides toll quality voice and simultaneous Internet access at 35/70 kbps. The system is designed to be deployed in both dense, urban and sparse, rural areas.