| The design of Joint Tactical Radio System (JTRS) Small Form Fit (SFF) radio sets is aimed at embedded communications applications for dismounted soldier systems and unmanned and unattended platforms such as; Intelligent Munitions Systems (IMS, Unattended Ground Sensors (UGS), Unmanned Aerial Vehicles (UAV), and Non-Line of Site (NLOS) Precision Attack Missiles (PAM). These SFF sets will provide the seamless communications and networked interoperability needed at the tactical edge of the battle space. The platforms on which these SFF sets are integrated drive the radio design to meet highly controlled size, weight, and power (SWaP) tolerances. The SWaP constraints, in turn, create limitations on processing capabilities and memory allocations, which generate significant challenge the SFF and waveform developers. The Soldier Radio Waveform (SRW) application is the key networking waveform for the SFF sets. The concept of operation for each host platform that a SFF is embedded creates a different type of networking challenge. Characteristics of these domains such as battery operated power sources and low gain antennas along with requirements for integration into a secure Network Centric Future Combat System (FCS) environment create significant challenges for the SFF and SRW developer. This paper will address the challenges and issues related to SFF radio design for the JTRS SRW internetworking domain. We will highlight some of the major SFF design and networking constraints and trade-offs that must be considered. Additionally, a detailed analysis of possible solution sets will be provided along with the pros and cons of each solution recommended. This paper will aim to identify optimal solutions addressing processing capability, radio functionality, and networking applicability. |