Erman Hamid

Network performance evaluation of 6to4 tunneling

Several types of IPv6 transition mechanisms have been developed to facilitate the migration of IPv4 to the new protocol, IPv6. Although all transition mechanisms have the same objective, the process necessitates compliance with their respective capabilities. This paper focuses on the evaluation of the transition mechanisms namely 6 to 4 tunneling in terms of data transmission. The assessment is based upon experimental work that is conducted on a controlled environment. User-to-user network performance software is used to obtain the throughput, round trip time and tunneling overhead for TCP and UDP transmission protocol. The performance of TCP and UDP through 6 to 4 tunnel is then compared over the native IPv4 and IPv6 environment. As a result, the findings prove the ease of TCP data transmission via the tunnel compared to both native networks. In contrast, the UDP implementations show the slight difference for them.

Game Interface Design: Measuring the Player's Gameplay Experience.

The objective of this study is to investigate the effects of user’s gameplay experience on the generated game interface design. This paper focuses only on the findings from a conducted questionnaire involving 94 users who utilized the game interface design of “A Garuda”. The seven factors observed from the gaming experience are immersion, flow, challenge, tension, competence, positive and negative affect adapted from the Game Experience Questionnaire (GEQ). The results showed that the game interface design produced has showed a lot of positive factor where the positive affect factor gave a higher mean value compared to the other factor of the gaming experience. The results from the t-test showed the effect of positive factors and the negative factors of the user’s game experience, where there is a significant impact towards both aforementioned factors. However, there is also a high impact on the negative factor resulting from the effect of user’s interaction on the related game interface design. This shows that the related interface design still needs to be improved in the future. The outcome of this study gives significance to game designers that they should take into account of the user’s affective effect towards any game interface designs that they produced.