The exponential growth of demand for mobile broadband access in emerging cities has been pushing deployment of long-term evolution (LTE) mobile technology. However, technological advancement towards LTE alone cannot show the performance, acceptance, and economic viability of an investment without detail technical and economic feasibility assessment of possible LTE deployment alternatives. In this thesis, first potential LTE deployment scenarios analyzed and formulated through scenario planning method for emerging city. Then, techno-economic analysis consists of marketing forecast, radio access network dimensioning, cost and revenue modeling, and economic feasibility analysis for seven years study period assuming a monopoly telecom market using modified TERA model performed. For techno-economic evaluation, modified TERA model is implemented in the MATLAB. Results show that market potential and operating frequency have a great impact on network capacity, coverage and number of sites in the area which in turn influences the rate of return on investment. Deployment of LTE in 1800Mhz band under high and low demand capacity, and deployment of LTE in 2100Mhz band under high demand capacity are feasible with the payback period of less than 3.5 years for emerging city. From specially formulated deployments scenarios techno-economic results, coverage favored LTE deployment scenario (in 1800Mhz under low demand capacity) is technically and economically feasible for Adama city of Ethiopia in a monopoly telecom operator market with payback period of 3.25 years.