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ساری بات سمجھ جاتا ہے

ساری بات سمجھ جاتا ہے
فاع فاعلن پر اٹکا ہے

فاع فعولن فاع فعولن
سارا کھیل فعولن کا ہے

میرے عروض پہ شک کرتا ہے
’’پہلی بارش‘‘ کو دیکھا ہے!

میرا عروض پرکھنے والے
تجھ کو عروض نہیں آتا ہے

پہلے ناصرؔ کو پڑھ کر آ
بات عروض کی گر کرتا ہے

فعلن کی تو سو صورت ہے
تو بس آٹھ لیے پھرتا ہے

’’پہلی بارش ‘‘میں ناصر نے
ہندی بحر کو ہی برتا ہے

میرے شہر کے لوگوں نے تو
ناصرؔ کو بے وزن کہا ہے

تجھ کو وہی سمجھے گا صادقؔ
جس نے ناصرؔ کو دیکھا ہے

POLA SOSIALISASI PERGURUAN TINGGI DALAM MENINGKATKAN JUMLAH PENERIMAAN MAHASISWA BARU PADA IAIN PALU

This article discusses the effectiveness of the new student admission socialization program on the decision of the prospective student to enroll in the State Islamic Institute (IAIN) Palu. The problem studied is How are the efforts of socialization of new student admissions applied at IAIN Palu? What is the most effective socialization attempt for student candidate's admission at IAIN Palu? This research uses survey research design combined with descriptive qualitative analysis model. Data collection using questionnaire method supported by interview and collecting a documentations. The results showed that the socialization efforts applied in IAIN Palu was by utilizing mass media and school visit. An effective efforts of socialization for introducing institutions to the public is unprogrammed in schedules, they used word to word (door to door) and publicity promotion. Nevertheless, regular programmed socialization models are held regularly every day before the admission of new students, usually used advertising and “personal selling” through visits to schools, is still quite effective. While the main consideration factor for enrolling in IAIN Palu is the availability of courses appropriate to their interests.

Rate Optimization and Resource Allocation in Cooperative Cognitive Radio Networks

Rate Optimization and Resource Allocation in Cooperative Cognitive Radio Networks The phenomenal rise in the number of connected devices and the demand for service quality and channel capacity in wireless networks is severely limited by the scarcity of available resources such as energy and bandwidth. New communications and networking paradigms such as cooperative communication and cognitive radio networks have emerged in recent years which can intelligently and efficiently utilize these resources. Cognitive radio enables the cognitive nodes or Secondary Users (SUs) to sense any opportunity for transmission without degrading the Primary Users (PUs) transmission. This helps in efficient utilization of the available radio spectrum. Cooperation among PUs and SUs can greatly enhance the performance of the cognitive radio network. In this thesis, we have considered various spectrum access strategies in Cooperative Cognitive Radio Networks (CCRNs) using distributed matching algorithms in order to optimize the PU and/or SU sum-rate. SUs cooperatively relay PUs messages based on Amplify-and-Forward (AF) and Decode-and-Forward (DF) cooperative techniques, in exchange for accessing some of the spectrum for their secondary communications. From the literatures, we found that the Conventional Distributed Algorithm (CDA) and Pragmatic Distributed Algorithm (PDA) aim to maximize the PU sum-rate resulting in a lower sum-rate for the SU. In this contribution, we have investigated a suit of distributed matching algorithms. More specifically, we investigated SU-based CDA (CDA-SU) and SU-based PDA (PDA-SU) that maximize the SU sum-rate. We have also proposed the All User-based PDA (PDA-ALL), for maximizing the sum-rates of both PU and SU groups. All schemes are investigated under the idealistic scenario involving perfect coding and perfect modulation, as well as under practical scenario involving actual coding and actual modulation. Explicitly, our practical scenario considers the adaptive coded modulation based DF schemes for transmission flexibility and efficiency. More specifically, we have considered the Self-Concatenated Convolutional Code (SECCC), which exhibits low complexity, since it invokes only a single encoder and a single decoder. Furthermore, puncturing has been employed for enhancing the bandwidth efficiency of SECCC. As another enhancement, physical layer security has been applied to our system by introducing a unique Advanced Encryption Standard (AES) based puncturing to our SECCC scheme. Furthermore, we present a secrecy sum-rate maximization based matching algorithm between PUs and SU cooperative jammers in the presence of an eavesdropper. We present the achievable secrecy regions by employing friendly jammers which transmit noise to impair the eavesdropper’s ability to decode the message. The cooperative jammers are allocated a fraction of the bandwidth in compensation for their help to transmit jamming signals towards the eavesdropper, which in our case is an untrusted relay node. We provide results for the secrecy rate regions, where we consider only relaying link between the source and the destination. We also provide results for the secrecy rate regions when we consider a direct link between the source and destination in addition to the relaying link. The Conventional Distributed Algorithm (CDA) and the Pragmatic Distributed Algorithm (PDA), which were originally designed for maximizing the user’s sum rate, are modified and adapted for maximizing the secrecy sum-rate for the primary user. In the end we considered a scenario such that a single PU can acquire help from multiple SUs. More explicitly, we consider an untrusted relay scenario, where the relay is a potential eavesdropper. The transmission of the proposed scheme is divided into three time slots, i.e., broadcast and jamming phase, relaying phase and the jammer’s secondary transmission phase or utility phase. We employ multiple jammers where we first fix the position of two jammers and study the behavior of introducing another moving jammer to maximize the secrecy further. We consider a leader-follower game theoretic model where the primary user (source) is the leader and the secondary users (jammers) are the followers. To facilitate the behavior of cooperative jammers, a Nash equilibrium based power control mechanism is employed. We consider two scenarios for our power control mechanism, where in the first case the jammers simultaneously transmit their information (non-orthogonal) during the jammer’s utility phase, while in the second case the jammer’s utility time slot is divided equally among the participating jammers (orthogonal) to mitigate interference caused by the participating jammers.
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